LII / Lennox International Inc. - Pengajuan SECLaporan Tahunan, Pernyataan Proksi

Lennox International Inc.
US ˙ NYSE ˙ US5261071071

Mga Batayang Estadistika
LEI S7DWAC87RDMPBF77GJ92
CIK 1069202
SEC Filings
All companies that sell securities in the United States must register with the Securities and Exchange Commission (SEC) and file reports on a regular basis. These reports include company annual reports (10K, 10Q), news updates (8K), investor presentations (found in 8Ks), insider trades (form 4), ownership reports (13D, and 13G), and reports related to the specific securities sold, such as registration statements and prospectus. This page shows recent SEC filings related to Lennox International Inc.
SEC Filings (Chronological Order)
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July 23, 2025 EX-99.1

LENNOX INTERNATIONAL INC. AND SUBSIDIARIES Consolidated Statements of Operations (Amounts in millions, except per share data) For the Three Months Ended June 30, For the Six Months Ended June 30, 2025 2024 2025 2024 Net sales $ 1,500.9 $ 1,451.1 $ 2,

Exhibit 99.1 Lennox Reports Second Quarter Results Q2 Highlights (All comparisons are year-over-year, unless otherwise noted) •Revenue $1.5 billion, up 3% •GAAP Operating Income $354 million – Segment profit up 11% to $354 million •GAAP diluted EPS $7.82 – Adjusted diluted EPS up 14% to $7.82 •FY 25 guidance increased: Revenue up 3% and revised EPS range of $23.25-$24.25 DALLAS, July 23, 2025 – Le

July 23, 2025 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (date of earliest event reported): July 23, 2025 LENNOX INTERNATIONA

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (date of earliest event reported): July 23, 2025 LENNOX INTERNATIONAL INC. (Exact name of registrant as specified in its charter) Delaware 001-15149 42-0991521 (State or other jurisdiction of incorporation) (Commission

July 23, 2025 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q _________________________________________________ ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period end

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2025 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 001-15149 LENNOX INTERNATIONAL I

July 23, 2025 144

144

144 0001139032 XXXXXXXX LIVE 0001069202 LENNOX INTERNATIONAL INC 001-15149 2140 LAKE PARK BLVD.

May 28, 2025 SD

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM SD SPECIALIZED DISCLOSURE REPORT LENNOX INTERNATIONAL INC. (Exact name of registrant as specified in its charter)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM SD SPECIALIZED DISCLOSURE REPORT LENNOX INTERNATIONAL INC. (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation or organization) 001-15149 (Commission File Number) 42-0991521 (I.R.S. Employer Identification No.) 2140 Lake Park Blvd. Richardson, Texas 75080 (Address

May 28, 2025 EX-1.01

Conflict Minerals Report of Lennox International Inc.

Exhibit 1.01 CONFLICT MINERALS REPORT Reporting Period from January 1, 2024 to December 31, 2024 LENNOX INTERNATIONAL INC. This Conflict Minerals Report (this “Report”) of Lennox International Inc. (including its consolidated subsidiaries, the “Company”) has been prepared pursuant to Rule 13p-1 and Form SD promulgated under the Securities Exchange Act of 1934 for the reporting period from January

May 27, 2025 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits, Submission of Matters to a Vote of Security Holders

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (date of earliest event reported): May 22, 2025 LENNOX INTERNATIONAL INC. (Exact name of registrant as specified in its charter) Delaware 001-15149 42-0991521 (State or other jurisdiction of incorporation) (Commission

May 20, 2025 144

144

144 0001296605 XXXXXXXX LIVE 0001069202 LENNOX INTERNATIONAL INC 001-15149 2140 LAKE PARK BLVD RICHARDSON TX 75080 972-497-5000 Torres John D Former Officer Common Fidelity Brokerage Services LLC 900 Salem Street Smithfield RI 02917 108 65067.

May 14, 2025 EX-10.1

Amendment and Restatement Agreement adopting the Amended and Restated Credit Agreement, dated as of May 9, 2025, among Lennox International Inc., the guarantors and lenders party thereto, and JPMorgan Chase Bank, N.A., as Administrative Agent.

EXECUTION VERSION AMENDMENT AND RESTATEMENT AGREEMENT dated as of May 9, 2025 (this “Amendment”), to the Credit Agreement dated as of July 14, 2021 (as amended, supplemented or otherwise modified prior to the date hereof, including pursuant to the First Amendment dated as of April 14, 2023, and the Second Amendment dated as of August 25, 2023, the “Existing Credit Agreement”), among LENNOX INTERNATIONAL INC.

May 14, 2025 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (date of earliest event reported): May 9, 2025 LENNOX INTERNATIONAL

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (date of earliest event reported): May 9, 2025 LENNOX INTERNATIONAL INC. (Exact name of registrant as specified in its charter) Delaware 001-15149 42-0991521 (State or other jurisdiction of incorporation) (Commission F

April 23, 2025 EX-99.1

Lennox International Inc. 2022 Employee Stock Purchase Plan (Amended and Restated Effective July 1, 2025) (filed herewith).

LENNOX INTERNATIONAL INC. 2022 EMPLOYEE STOCK PURCHASE PLAN (AMENDED AND RESTATED EFFECTIVE JULY 1, 2025) SECTION 1.PURPOSE. This Lennox International Inc. 2022 Employee Stock Purchase Plan (Amended and Restated effective July 1, 2025) (the “Plan”) is intended to advance the interests of Lennox International Inc., a Delaware corporation (the “Company”) and its stockholders by allowing employees of

April 23, 2025 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q _________________________________________________ ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period end

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2025 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 001-15149 LENNOX INTERNATIONAL

April 23, 2025 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (date of earliest event reported): April 23, 2025 LENNOX INTERNATION

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (date of earliest event reported): April 23, 2025 LENNOX INTERNATIONAL INC. (Exact name of registrant as specified in its charter) Delaware 001-15149 42-0991521 (State or other jurisdiction of incorporation) (Commissio

April 23, 2025 EX-99.1

LENNOX INTERNATIONAL INC. AND SUBSIDIARIES Consolidated Statements of Operations (Amounts in millions, except per share data) For the Three Months Ended March 31, 2025 2024 Net sales $ 1,072.6 $ 1,047.1 Cost of goods sold 744.1 707.1 Gross profit 328

Exhibit 99.1 Lennox Reports First Quarter Results Q1 Highlights (All comparisons are year-over-year, unless otherwise noted) •Revenue $1.1 billion, up 2% •GAAP Operating Income $156 million – Segment profit down 7% to $156 million •GAAP diluted EPS $3.37 – Adjusted diluted EPS down 3% to $3.37 •Maintaining 2% revenue guidance and narrowing the adjusted EPS range to $22.25-$23.50 DALLAS, April 23,

April 23, 2025 EX-10.3

Form of Employment Agreement entered into between LII and certain executive officers of LII (current version) (filed

Exhibit 10.3 [COMPANY LETTERHEAD] [DATE] [Name of Employee] [Address] [Address] Dear , As a key employee, essential to the company’s future profitability, growth, and financial strength, Lennox International Inc. is providing you with this letter agreement (including exhibits) in order to establish the material terms of your employment with Lennox (the “Agreement”). The specific commitments of you

April 9, 2025 DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. )

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant ☒ Filed by a party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ☐ Defin

April 9, 2025 DEF 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. )

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant ☒ Filed by a party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ☒ Defin

March 13, 2025 EX-16.1

Letter of KPMG LLP, dated March 13, 2025

Exhibit 16.1 (Firm Letterhead) March 13, 2025 Securities and Exchange Commission Washington, D.C. 20549 Ladies and Gentlemen: We were previously principal accountants for Lennox International, Inc. (the Company) and, under the date of February 11, 2025, we reported on the consolidated financial statements of the Company as of and for the years ended December 31, 2024 and 2023, and the effectivenes

March 13, 2025 8-K

Financial Statements and Exhibits, Changes in Registrant's Certifying Accountant

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (date of earliest event reported): March 7, 2025 LENNOX INTERNATIONAL INC. (Exact name of registrant as specified in its charter) Delaware 001-15149 42-0991521 (State or other jurisdiction of incorporation) (Commission

February 11, 2025 EX-10.9

Form of Long-Term Incentive Award Agreement for U.S. Employees - Vice President and Above (for use under the 2019 Incentive Plan) (2025 version) (filed as Exhibit 10.9 to LII's Annual Report on Form 10-K filed on February 11, 2025 and incorporated herein by reference).

Exhibit 10.9 LENNOX INTERNATIONAL INC. Long-Term Incentive Award Agreement U.S. Employees – Vice President and Above THIS AGREEMENT (“Agreement”) is made as of , 20 (the “Date of Grant”), by and between Lennox International Inc., a Delaware corporation (the “Company”), and (“Participant”). The Company has adopted the Lennox International Inc. 2019 Equity and Incentive Compensation Plan (as amended

February 11, 2025 EX-19.1

Insider Trading Policy (filed herewith)

Exhibit 19.1 LENNOX INTERNATIONAL INC. INSIDER TRADING POLICY I.Purpose The purpose of this Policy (the “Policy”) is to promote compliance by Lennox International Inc. (the “Company”), the members of its Board of Directors, and its officers and employees with laws related to transactions in securities. II.Applicability of Policy A.Persons Covered This Policy applies to members of the Company’s Boa

February 11, 2025 EX-21.1

Subsidiaries of LII (filed herewith).

EXHIBIT 21.1 Lennox International Inc. Subsidiaries The following are the subsidiaries of Lennox International Inc., as of February 2, 2025, and the states or jurisdictions in which they are organized. Subsidiaries are indented below their immediate parent entity. The names of certain subsidiaries have been omitted because, considered in the aggregate as a single subsidiary, they would not constit

February 11, 2025 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-K ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2024 ☐ TRANSITION REPORT PURSUANT TO SECTI

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-K ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2024 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 001-15149 LENNOX INTERNATIONAL INC.

January 29, 2025 EX-99.1

LENNOX INTERNATIONAL INC. AND SUBSIDIARIES Consolidated Statements of Operations (Amounts in millions, except per share data) For the Three Months Ended December 31, For the Years Ended December 31, 2024 2023 2024 2023 Net sales $ 1,345.0 $ 1,154.8 $

Exhibit 99.1 Lennox Reports Fourth Quarter and Full Year 2024 Results; Provides Full Year 2025 Guidance Q4 Highlights (All comparisons are year-over-year, unless otherwise noted) (Prior-year adjusted results and core revenue exclude European operations that were divested in the 4Q 2023) • Revenue $1.3 billion – Core revenue up 22%, including 1% growth from acquisitions • GAAP diluted EPS $5.52 – A

January 29, 2025 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (date of earliest event reported): January 29, 2025 LENNOX INTERNATIONAL INC. (Exact name of registrant as specified in its charter) Delaware 001-15149 42-0991521 (State or other jurisdiction of incorporation) (Commiss

December 6, 2024 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (date of earliest event reported): December 5, 2024 LENNOX INTERNATIONAL INC. (Exact name of registrant as specified in its charter) Delaware 001-15149 42-0991521 (State or other jurisdiction of incorporation) (Commiss

October 23, 2024 EX-99.2

Lennox Announces Chief Legal Officer Transition Plan

Lennox Announces Chief Legal Officer Transition Plan DALLAS, October 23, 2024—Lennox (NYSE: LII) announced today that Executive Vice President, Chief Legal Officer and Secretary John Torres has elected to retire effective February 28, 2025, after a distinguished 16 years with the company.

October 23, 2024 EX-99.1

LENNOX INTERNATIONAL INC. AND SUBSIDIARIES Consolidated Statements of Operations (Amounts in millions, except per share data) For the Three Months Ended September 30, For the Nine Months Ended September 30, 2024 2023 2024 2023 Net sales $ 1,498.1 $ 1

Exhibit 99.1 Lennox Reports Third Quarter Results and Raises Full Year Guidance Q3 Highlights (All comparisons are year-over-year, unless otherwise noted) (Prior-year adjusted results and core revenue exclude European operations that were divested in the 4Q 2023) • Revenue $1.5 billion – Core revenue up 15%, including 2% growth from acquisitions • GAAP Operating Income $303 million – Adjusted segm

October 23, 2024 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D. C. 20549 FORM 10-Q _________________________________________________ ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period en

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D. C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2024 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 001-15149 LENNOX INTERNATI

October 23, 2024 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (date of earliest event reported): October 21, 2024 LENNOX INTERNATI

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (date of earliest event reported): October 21, 2024 LENNOX INTERNATIONAL INC. (Exact name of registrant as specified in its charter) Delaware 001-15149 42-0991521 (State or other jurisdiction of incorporation) (Commiss

July 24, 2024 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D. C. 20549 FORM 10-Q _________________________________________________ ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period en

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D. C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2024 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 001-15149 LENNOX INTERNATIONAL

July 24, 2024 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (date of earliest event reported): July 24, 2024 LENNOX INTERNATIONA

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (date of earliest event reported): July 24, 2024 LENNOX INTERNATIONAL INC. (Exact name of registrant as specified in its charter) Delaware 001-15149 42-0991521 (State or other jurisdiction of incorporation) (Commission

July 24, 2024 EX-99.1

LENNOX INTERNATIONAL INC. AND SUBSIDIARIES Consolidated Statements of Operations (Amounts in millions, except per share data) For the Three Months Ended June 30, For the Six Months Ended June 30, 2024 2023 2024 2023 Net sales $ 1,451.1 $ 1,411.4 $ 2,

Exhibit 99.1 Lennox Reports Second Quarter Results and Raises Full Year Profit Guidance Q2 Highlights (All comparisons are year-over-year, unless otherwise noted) (Prior-year adjusted results and core revenue exclude European operations that were divested in the 4Q 2023) • Revenue $1.45 billion – Core revenue up 8%, including 2% growth from acquisitions • GAAP Operating Income $320 million – Adjus

May 30, 2024 EX-1.01

Conflict Minerals Report of Lennox International Inc.

Exhibit 1.01 CONFLICT MINERALS REPORT Reporting Period from January 1, 2023 to December 31, 2023 LENNOX INTERNATIONAL INC. This Conflict Minerals Report (this “Report”) of Lennox International Inc. (including its consolidated subsidiaries, the “Company”) has been prepared pursuant to Rule 13p-1 and Form SD promulgated under the Securities Exchange Act of 1934 for the reporting period from January

May 30, 2024 SD

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM SD SPECIALIZED DISCLOSURE REPORT LENNOX INTERNATIONAL INC. (Exact name of registrant as specified in its charter)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM SD SPECIALIZED DISCLOSURE REPORT LENNOX INTERNATIONAL INC. (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation) 001-15149 (Commission File Number) 42-0991521 (IRS Employer Identification No.) 2140 Lake Park Blvd. Richardson, Texas 75080 (Address of principal execut

May 23, 2024 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (date of earliest event reported): May 20, 2024 LENNOX INTERNATIONAL INC. (Exact name of registrant as specified in its charter) Delaware 001-15149 42-0991521 (State or other jurisdiction of incorporation) (Commission

May 20, 2024 8-K

Submission of Matters to a Vote of Security Holders

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (date of earliest event reported): May 16, 2024 LENNOX INTERNATIONAL INC. (Exact name of registrant as specified in its charter) Delaware 001-15149 42-0991521 (State or other jurisdiction of incorporation) (Commission

April 24, 2024 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (date of earliest event reported): April 24, 2024 LENNOX INTERNATIONAL INC. (Exact name of registrant as specified in its charter) Delaware 001-15149 42-0991521 (State or other jurisdiction of incorporation) (Commissio

April 24, 2024 EX-99.1

LENNOX INTERNATIONAL INC. AND SUBSIDIARIES Consolidated Statements of Operations (Amounts in millions, except per share data) For the Three Months Ended March 31, 2024 2023 Net sales $ 1,047.1 $ 1,049.4 Cost of goods sold 707.1 742.8 Gross profit 340

Exhibit 99.1 Lennox Reports First Quarter Results and Raises Full Year Profit Guidance Q1 Highlights (All comparisons are year-over-year, unless otherwise noted) (Prior-year adjusted results and core revenue exclude European operations that were divested in the 4Q 2023) • Revenue was $1.05 billion; core revenue up 6%, including 2% growth from acquisitions • GAAP Operating Income $167 million; adju

April 24, 2024 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D. C. 20549 FORM 10-Q _________________________________________________ ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period en

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D. C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2024 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 001-15149 LENNOX INTERNATIONAL

April 3, 2024 DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant ☒ Filed by a party other than the Registran

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant ☒ Filed by a party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ☐ Defin

April 3, 2024 DEF 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. )

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant  ☒ Filed by a party other than the Registrant  ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as permitted by Rule

March 18, 2024 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (date of earliest event reported): March 15, 2024 LENNOX INTERNATIONAL INC. (Exact name of registrant as specified in its charter) Delaware 001-15149 42-0991521 (State or other jurisdiction of incorporation) (Commissio

February 13, 2024 SC 13G/A

LII / Lennox International Inc. / VANGUARD GROUP INC - SCHEDULE 13G/A Passive Investment

SC 13G/A 1 tv01331-lennoxinternationali.htm SCHEDULE 13G/A SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 10)* Name of issuer: Lennox International Inc Title of Class of Securities: Common Stock CUSIP Number: 526107107 Date of Event Which Requires Filing of this Statement: December 29, 2023 Check the appropriate box

February 13, 2024 EX-21.1

Subsidiaries of LII (filed herewith).

EXHIBIT 21.1 Lennox International Inc. Subsidiaries The following are the subsidiaries of Lennox International Inc., as of February 6, 2024, and the states or jurisdictions in which they are organized. Subsidiaries are indented below their immediate parent entity. The names of certain subsidiaries have been omitted because, considered in the aggregate as a single subsidiary, they would not constit

February 13, 2024 EX-10.10

Form of Restricted Stock Unit Award Agreement for Non-Employee Directors (for use under the 2019 Incentive Plan)

Exhibit 10.10 LENNOX INTERNATIONAL INC. Restricted Stock Unit Award Agreement Non-Employee Directors THIS AGREEMENT (“Agreement”) is made as of , 20 (the “Date of Grant”), by and between Lennox International Inc., a Delaware corporation (the “Company”), and (“Participant”). The Company has adopted the Lennox International Inc. 2019 Equity and Incentive Compensation Plan (as amended and restated fr

February 13, 2024 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-K ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2023 ☐ TRANSITION REPORT PURSUANT TO SECTI

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-K ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2023 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 001-15149 LENNOX INTERNATIONAL INC.

February 13, 2024 EX-97.1

LII Amended and Restated Clawback Policy (filed as Exhibit 97.1 to LII’s Annual Report on Form 10-K filed on February 13, 2024 and incorporated herein by reference).

Exhibit 97.1 LENNOX INTERNATIONAL INC. AMENDED AND RESTATED CLAWBACK POLICY Article I Definitions “Committee” means the Compensation & Human Resources Committee of the Board of Directors of the Company, who will administer this Policy in accordance with NYSE guidance. “Company” means Lennox International Inc. “Covered Person” means the Company’s current and former Chief Executive Officers, Executi

February 13, 2024 EX-22.1

List of Guarantor Subsidiaries (filed as Exhibit 22.1 to LII's Annual Report on Form 10-K filed on February 13, 2024, and incorporated herein by reference).

Exhibit 22.1 List of Guarantor Subsidiaries The following subsidiaries of Lennox International Inc. (the “Company”) are guarantors with respect to the Company’s (1) 1.35% Notes due 2025, (2) 1.70% Notes due 2027 and (3) 5.50% Notes due 2028: Guarantor State or Other Jurisdiction of Formation Advanced Distributor Products LLC Delaware Allied Air Enterprises LLC Delaware Heatcraft Inc. Delaware Heat

February 13, 2024 EX-10.9

Form of Restricted Stock Unit Award Agreement for Non-Employee Directors (for use under the 2019 Incentive Plan)

Exhibit 10.9 LENNOX INTERNATIONAL INC. Restricted Stock Unit Award Agreement Non-Employee Directors THIS AGREEMENT (“Agreement”) is made as of , 20 (the “Date of Grant”), by and between Lennox International Inc., a Delaware corporation (the “Company”), and (“Participant”). The Company has adopted the Lennox International Inc. 2019 Equity and Incentive Compensation Plan (as amended and restated fro

January 31, 2024 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (date of earliest event reported): January 31, 2024 LENNOX INTERNATIONAL INC. (Exact name of registrant as specified in its charter) Delaware 001-15149 42-0991521 (State or other jurisdiction of incorporation) (Commiss

January 31, 2024 EX-99.1

LENNOX INTERNATIONAL INC. AND SUBSIDIARIES Consolidated Statements of Operations (Amounts in millions, except per share data) For the Three Months Ended December 31, For the Years Ended December 31, 2023 2022 2023 2022 Net sales $ 1,154.8 $ 1,093.8 $

Exhibit 99.1 Lennox Reports Record Fourth Quarter and Full Year 2023 Results; Increases Long-Term Financial Targets and Provides FY 2024 Guidance Q4 Results Summary (All comparisons are year-over-year, unless otherwise noted) • Revenue up 6% to $1.2 billion; core revenue excluding European Operations up 7% to $1.1 billion • GAAP diluted EPS up 52% to $4.04; adjusted diluted EPS up 41% to $3.63 • O

December 11, 2023 8-K/A

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K/A CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (date of earliest event reported): October 23, 2023 LENNOX INTERNATIONAL INC. (Exact name of registrant as specified in its charter) Delaware 001-15149 42-0991521 (State or other jurisdiction of incorporation) (Commi

December 11, 2023 EX-10.2

Form of Offer Letter entered into between LII and certain executive officers of LII (current version) (filed as Exhibit 10.2 to LII’s Current Report on Form 8-K filed on December 11, 2023 and incorporated herein by reference).

Exhibit 10.2 [DATE] [Name of Employee] [Address] [Address] Dear , I am pleased to confirm the verbal offer made to you for the position of at Lennox International Inc. (“Lennox” or the “Company”), reporting directly to me and effective . This letter outlines the terms of our offer. Base Salary Your annual base salary will be $, paid on a semi-monthly basis in the amount of $, less applicable withh

December 11, 2023 EX-10.1

(filed as Exhibit 10.1 to LII’s Current Report on Form 8-K filed on December 11, 2023 and incorporated herein by reference).

Exhibit 10.1 LENNOX INTERNATIONAL INC. Long-Term Incentive Award Agreement U.S. Employees – Vice President and Above THIS AGREEMENT (“Agreement”) is made as of , 20 (the “Date of Grant”), by and between Lennox International Inc., a Delaware corporation (the “Company”), and (“Participant”). The Company has adopted the Lennox International Inc. 2019 Equity and Incentive Compensation Plan (as amended

December 11, 2023 EX-10.3

Form of Employment Agreement

Exhibit 10.3 [COMPANY LETTERHEAD] [DATE] [Name of Employee] [Address] [Address] Dear , As a key employee, essential to the company’s future profitability, growth, and financial strength, Lennox International Inc. is providing you with this letter agreement (including exhibits) in order to establish the material terms of your employment with Lennox (the “Agreement”). The specific commitments of you

December 11, 2023 EX-10.4

Form of Indemnification Agreement entered into between the Company and certain executive officers and directors of the Company (filed as Exhibit 10.4 to the Company’s Current Report on Form 8-K filed on December 11, 2023 and incorporated herein by reference).

Exhibit 10.4 LENNOX INTERNATIONAL INC. INDEMNIFICATION AGREEMENT THIS INDEMNIFICATION AGREEMENT (the “Agreement”) is made by and between Lennox International Inc., a Delaware corporation (the “Company”), and (the “Indemnitee”), and is effective on (the “Effective Date”). Background Statement and Recitals Highly competent and experienced persons are becoming more reluctant to serve corporations as

December 8, 2023 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (date of earliest event reported): December 7, 2023 LENNOX INTERNATI

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (date of earliest event reported): December 7, 2023 LENNOX INTERNATIONAL INC. (Exact name of registrant as specified in its charter) Delaware 001-15149 42-0991521 (State or other jurisdiction of incorporation) (Commiss

November 13, 2023 CORRESP

For the Years Ended December 31, (in millions)

November 13, 2023 VIA EDGAR U.S. Securities and Exchange Commission Division of Corporation Finance 100 F Street, N.E. Attention: Jennifer Angelini Charli Gibbs-Tabler Division of Corporation Finance Office of Technology Re: Lennox International Inc. Form 10-K For Fiscal Year Ended December 31, 2022 Filed February 21, 2023 File No. 001-15149 Ladies and Gentlemen: Set forth below is Lennox Internat

October 26, 2023 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D. C. 20549 FORM 10-Q _________________________________________________ ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period en

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D. C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2023 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 001-15149 LENNOX INTERNATI

October 26, 2023 8-K

Regulation FD Disclosure, Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (date of earliest event reported): October 23, 2023 LENNOX INTERNATIONAL INC. (Exact name of registrant as specified in its charter) Delaware 001-15149 42-0991521 (State or other jurisdiction of incorporation) (Commiss

October 26, 2023 EX-22.1

List of Guarantor Subsidiaries (filed herewith).

Exhibit 22.1 List of Guarantor Subsidiaries The following subsidiaries of Lennox International Inc. (the “Company”) are guarantors with respect to the Company’s (1) 3.00% Notes due 2023, (2) 1.35% Notes due 2025, (3) 1.70% Notes due 2027 and (4) 5.50% Notes due 2028: Guarantor State or Other Jurisdiction of Formation Advanced Distributor Products LLC Delaware Allied Air Enterprises LLC Delaware He

October 26, 2023 EX-99.1

LENNOX INTERNATIONAL INC. AND SUBSIDIARIES Consolidated Statements of Operations (Amounts in millions, except per share data) For the Three Months Ended September 30, For the Nine Months Ended September 30, 2023 2022 2023 2022 Net sales $ 1,366.3 $ 1

Exhibit 99.1 Lennox Reports Record Third Quarter Results and Raises 2023 Guidance Q3 Results Summary (All comparisons are year-over-year, unless otherwise noted) • Revenue up 10% to $1.37 billion; core revenue excluding European Operations up 10% to $1.30 billion • GAAP diluted EPS down 9% to $3.65, impacted by impairment related to European divestiture; adjusted diluted EPS up 30% to $5.37 • Oper

October 26, 2023 EX-99.2

Lennox Announces Chief Financial Officer Leadership Transition Plan

Lennox Announces Chief Financial Officer Leadership Transition Plan DALLAS, TX October 26, 2023- Lennox (NYSE: LII) today announced that Executive Vice President and Chief Financial Officer Joe Reitmeier has elected to retire effective February 29, 2024, after 18 remarkable years with the company.

September 28, 2023 CORRESP

For the Years Ended December 31, (in millions)

September 28, 2023 VIA EDGAR U.S. Securities and Exchange Commission Division of Corporation Finance 100 F Street, N.E. Attention: Jennifer Angelini Charli Gibbs-Tabler Division of Corporation Finance Office of Technology Re: Lennox International Inc. Form 10-K For Fiscal Year Ended December 31, 2022 Filed February 21, 2023 File No. 001-15149 Ladies and Gentlemen: Set forth below is Lennox Interna

September 21, 2023 EX-99.1

Lennox Announces Agreement to Sell European Commercial HVAC and Refrigeration Businesses

Exhibit 99.1 Lennox Announces Agreement to Sell European Commercial HVAC and Refrigeration Businesses DALLAS, September 21, 2023– Lennox (NYSE: LII), a leader in energy-efficient climate-control solutions, announces it has entered into an agreement to sell its European commercial HVAC and refrigeration businesses, headquartered in Lyon, France, to funds managed by Syntagma Capital. The closing of

September 21, 2023 8-K

Financial Statements and Exhibits, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (date of earliest event reported): September 21, 2023 LENNOX INTERNATIONAL INC. (Exact name of registrant as specified in its charter) Delaware 001-15149 42-0991521 (State or other jurisdiction of incorporation) (Commi

September 15, 2023 EX-4.2

Eleventh Supplemental Indenture, dated as of September 15, 2023, among LII, the guarantors party thereto and U.S. Bank Trust Company, National Association, as trustee (filed as Exhibit 4.2 to LII's Current Report on Form 8-K filed on September 15, 2023 and incorporated herein by reference).

Exhibit 4.2 Execution Version ELEVENTH SUPPLEMENTAL INDENTURE among LENNOX INTERNATIONAL INC., as Issuer EACH OF THE GUARANTORS PARTY HERETO, as Guarantors and U.S. BANK TRUST COMPANY, NATIONAL ASSOCIATION (successor in interest to U.S. Bank National Association), as Trustee Dated as of September 15, 2023 Supplemental to the Indenture for Senior Debt Securities Dated as of May 3, 2010 5.500% Notes

September 15, 2023 8-K

Entry into a Material Definitive Agreement, Financial Statements and Exhibits, Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (date of earliest event reported): September 15, 2023 LENNOX INTERNATIONAL INC. (Exact name of registrant as specified in its charter) Delaware 001-15149 42-0991521 (State or other jurisdiction of incorporation) (Commi

September 12, 2023 8-K

Financial Statements and Exhibits, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (date of earliest event reported): September 7, 2023 LENNOX INTERNATIONAL INC. (Exact name of registrant as specified in its charter) Delaware 001-15149 42-0991521 (State or other jurisdiction of incorporation) (Commis

September 12, 2023 EX-1.1

Underwriting Agreement, dated as of September 7, 2023, by and among the Company, the guarantors party thereto, and BofA Securities, Inc., J.P. Morgan Securities LLC, and Wells Fargo Securities, LLC, as representatives of the several underwriters named therein.

Exhibit 1.1 Execution Version UNDERWRITING AGREEMENT $500,000,000 5.500% Senior Notes due 2028 LENNOX INTERNATIONAL INC. September 7, 2023 BofA Securities, Inc. J.P. Morgan Securities LLC Wells Fargo Securities, LLC as Representatives of the several Underwriters named in Schedule 1 hereto c/o BofA Securities, Inc. One Bryant Park New York, New York 10036 J.P. Morgan Securities LLC 383 Madison Aven

September 8, 2023 424B5

Lennox International Inc. $500,000,000 5.500% Notes due 2028

424B5 Table of Contents Filed Pursuant to Rule 424(b)(5) Registration No. 333-268030 Prospectus supplement (To Prospectus dated October 27, 2022) Lennox International Inc. $500,000,000 5.500% Notes due 2028 We are offering $500,000,000 aggregate principal amount of our 5.500% notes due 2028 (the “notes”). Interest will accrue on the notes from September 15, 2023 and we will pay interest on the not

September 8, 2023 EX-FILING FEES

Calculation of Filing Fee Tables (Form Type) Lennox International Inc. Advanced Distributor Products LLC Allied Air Enterprises LLC Heatcraft Inc. Heatcraft Refrigeration Products LLC Heatcraft Technologies Inc. Lennox Global LLC Lennox Industries In

Exhibit 107.1 Calculation of Filing Fee Tables 424(b)(5) (Form Type) Issuer: Lennox International Inc. Guarantors: Advanced Distributor Products LLC Allied Air Enterprises LLC Heatcraft Inc. Heatcraft Refrigeration Products LLC Heatcraft Technologies Inc. Lennox Global LLC Lennox Industries Inc. Lennox National Account Services Inc. Lennox National Account Services LLC Lennox Procurement Company I

September 7, 2023 424B5

Subject to completion, dated September 7, 2023

Table of Contents Filed Pursuant to Rule 424(b)(5) Registration No. 333-268030 This preliminary prospectus supplement relates to an effective registration statement under the Securities Act of 1933, but is not complete and may be changed. This preliminary prospectus supplement and the accompanying prospectus are not an offer to sell these securities and they are not soliciting an offer to buy thes

September 7, 2023 FWP

Lennox International Inc. Pricing Term Sheet September 7, 2023 Issuer: Lennox International Inc. Title of Securities: 5.500% Senior Notes due 2028 (the “notes”) Guarantors: Advanced Distributor Products LLC Allied Air Enterprises LLC Heatcraft Inc. H

Filed pursuant to Rule 433 Registration No. 333-268030 Lennox International Inc. Pricing Term Sheet September 7, 2023 Issuer: Lennox International Inc. Title of Securities: 5.500% Senior Notes due 2028 (the “notes”) Guarantors: Advanced Distributor Products LLC Allied Air Enterprises LLC Heatcraft Inc. Heatcraft Refrigeration Products LLC Heatcraft Technologies Inc. Lennox Global LLC Lennox Indust

August 28, 2023 EX-10.1

Second Amendment to the Credit Agreement, dated as of August 25, 2023, among LII as borrower, certain of its subsidiaries, as guarantors, the lenders party thereto, and JPMorgan Chase Bank, N.A., as administrative agent (filed as Exhibit 10.1 to LII's Current Report on Form 8-K filed on August 28, 2023 and incorporated herein by reference).

Exhibit 10.1 EXECUTION VERSION SECOND AMENDMENT dated as of August 25, 2023 (this “Amendment”), to the Credit Agreement dated as of July 14, 2021 (as amended, supplemented or otherwise modified prior to the date hereof, including pursuant to the First Amendment dated as of April 14, 2023, the “Credit Agreement”), among Lennox International Inc., a Delaware corporation (the “Borrower”), the BANKS p

August 28, 2023 8-K

Entry into a Material Definitive Agreement, Financial Statements and Exhibits, Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (date of earliest event reported): August 25, 2023 LENNOX INTERNATIONAL INC. (Exact name of registrant as specified in its charter) Delaware 001-15149 42-0991521 (State or other jurisdiction of incorporation) (Commissi

August 25, 2023 EX-99.1

Lennox Announces Definitive Agreement to Sell European Process Cooling Business to Glen Dimplex

Exhibit 99.1 Lennox Announces Definitive Agreement to Sell European Process Cooling Business to Glen Dimplex DALLAS, August 25, 2023– Lennox (NYSE: LII), a leader in energy-efficient climate-control solutions, announces it has entered into a definitive agreement to sell its Hyfra Process Cooling business unit, headquartered in Krunkel, Germany, to the Glen Dimplex Group. The closing of the transac

August 25, 2023 8-K

Financial Statements and Exhibits, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (date of earliest event reported): August 25, 2023 LENNOX INTERNATIONAL INC. (Exact name of registrant as specified in its charter) Delaware 001-15149 42-0991521 (State or other jurisdiction of incorporation) (Commissi

July 28, 2023 144

144

144 0001378371 XXXXXXXX LIVE 0001069202 LENNOX INTERNATIONAL INC 001-15149 2140 LAKE PARK BLVD RICHARDSON TX 75080 972-497-5000 Young Douglas L Former Executive Vice President Common Fidelity Brokerage Services LLC 900 Salem Street Smithfield RI 02917 51650 18745771.

July 27, 2023 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (date of earliest event reported): July 27, 2023 LENNOX INTERNATIONA

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (date of earliest event reported): July 27, 2023 LENNOX INTERNATIONAL INC. (Exact name of registrant as specified in its charter) Delaware 001-15149 42-0991521 (State or other jurisdiction of incorporation) (Commission

July 27, 2023 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D. C. 20549 FORM 10-Q _________________________________________________ ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period en

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D. C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2023 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 001-15149 LENNOX INTERNATIONAL

July 27, 2023 EX-99.1

LENNOX INTERNATIONAL INC. AND SUBSIDIARIES Consolidated Statements of Operations (Amounts in millions, except per share data) For the Three Months Ended June 30, For the Six Months Ended June 30, 2023 2022 2023 2022 Net sales $ 1,411.4 $ 1,366.3 $ 2,

Exhibit 99.1 Lennox Reports Record Second Quarter Results and Raises 2023 Guidance Q2 Highlights (All comparisons are year-over-year, unless otherwise noted) • Revenue up 3% to $1.41 billion; core revenue excluding European Operations up 3% to $1.34 billion • Operating income up 23% to $279 million; adjusted segment profit up 22% to $281 million • GAAP diluted EPS up 23% to $6.10; adjusted diluted

May 30, 2023 SD

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM SD SPECIALIZED DISCLOSURE REPORT LENNOX INTERNATIONAL INC. (Exact name of registrant as specified in its charter)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM SD SPECIALIZED DISCLOSURE REPORT LENNOX INTERNATIONAL INC. (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation) 001-15149 (Commission File Number) 42-0991521 (IRS Employer Identification No.) 2140 Lake Park Blvd. Richardson, Texas 75080 (Address of principal execut

May 30, 2023 EX-1.01

Conflict Minerals Report of Lennox International Inc.

Exhibit 1.01 CONFLICT MINERALS REPORT Reporting Period from January 1, 2022 to December 31, 2022 LENNOX INTERNATIONAL INC. This Conflict Minerals Report (this “Report”) of Lennox International Inc. (including its consolidated subsidiaries, the “Company”) has been prepared pursuant to Rule 13p-1 and Form SD promulgated under the Securities Exchange Act of 1934 for the reporting period from January

May 19, 2023 8-K

Submission of Matters to a Vote of Security Holders

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (date of earliest event reported): May 18, 2023 LENNOX INTERNATIONAL INC. (Exact name of registrant as specified in its charter) Delaware 001-15149 42-0991521 (State or other jurisdiction of incorporation) (Commission

May 10, 2023 144

144

144 0001554544 XXXXXXXX LIVE 0001069202 LENNOX INTERNATIONAL INC 001-15149 2140 LAKE PARK BLVD RICHARDSON TX 75080 972-497-5000 Reitmeier Joseph William Officer Common Fidelity Brokerage Services LLC 900 Salem Street Smithfield RI 02917 2808 792319.

April 27, 2023 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (date of earliest event reported): April 27, 2023 LENNOX INTERNATION

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (date of earliest event reported): April 27, 2023 LENNOX INTERNATIONAL INC. (Exact name of registrant as specified in its charter) Delaware 001-15149 42-0991521 (State or other jurisdiction of incorporation) (Commissio

April 27, 2023 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D. C. 20549 FORM 10-Q _________________________________________________ ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period en

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D. C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2023 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 001-15149 LENNOX INTERNATIONAL

April 27, 2023 EX-99.1

LENNOX INTERNATIONAL INC. AND SUBSIDIARIES Consolidated Statements of Operations (Amounts in millions, except per share data) For the Three Months Ended March 31, 2023 2022 Net sales $ 1,049.4 $ 1,013.4 Cost of goods sold 742.8 745.2 Gross profit 306

EX-99.1 Exhibit 99.1 Lennox Reports Record First Quarter Results Q1 Highlights (All comparisons are year-over-year, unless otherwise noted) • Revenue $1.05 billion; core revenue excluding European Operations up 3% to $990 million • Operating Income $140 million; adjusted segment profit up 20% to $142 million • GAAP diluted EPS $2.75; adjusted diluted EPS up 15% to $2.83 • Reiterating 2023 outlook:

April 18, 2023 EX-10.2

Amendment No. 12 to Amended and Restated Receivables Purchase Agreement, dated as of April 14, 2023, among LPAC Corp., as the Seller, Lennox Industries Inc., as the Master Servicer, Lennox International Inc., Victory Receivables Corporation, as a Purchaser, MUFG Bank, Ltd., formerly known as The Bank of Tokyo-Mitsubishi UFJ, Ltd., as administrative agent for the Investors, the purchaser agent for the MUFG Purchaser Group and a MUFG Liquidity Bank, Wells Fargo Bank, N.A., as the purchaser agent for the WFB Purchaser Group and a WFB Liquidity Bank, and PNC Bank, N.A., as the purchaser agent for the PNC Purchaser Group and a PNC Liquidity Bank, including attachments.

EX-10.2 Exhibit 10.2 AMENDMENT NO. 12 TO AMENDED AND RESTATED RECEIVABLES PURCHASE AGREEMENT This AMENDMENT NO. 12, dated as of April 14, 2023 (this “Amendment”), (this “Amendment”), is made with respect to that certain Amended and Restated Receivables Purchase Agreement, dated as of November 18, 2011 (as amended, restated, supplemented or otherwise modified, the “Agreement”), among LPAC CORP., a

April 18, 2023 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (date of earliest event reported): April 14, 2023 LENNOX INTERNATION

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (date of earliest event reported): April 14, 2023 LENNOX INTERNATIONAL INC. (Exact name of registrant as specified in its charter) Delaware 001-15149 42-0991521 (State or other jurisdiction of incorporation) (Commissio

April 18, 2023 EX-10.1

First Amendment of the Credit Agreement, dated as of April 14, 2023, among Lennox International Inc., the lenders party thereto, and JPMorgan Chase Bank, N.A., as Administrative Agent.

EX-10.1 Exhibit 10.1 EXECUTION VERSION FIRST AMENDMENT dated as of April 14, 2023 (this “Amendment”), to the Credit Agreement dated as of July 14, 2021 (the “Existing Credit Agreement”), among Lennox International Inc., a Delaware corporation (the “Borrower”), the BANKS party thereto and JPMORGAN CHASE BANK, N.A., as Administrative Agent (the “Administrative Agent”). WHEREAS the Banks have agreed

April 6, 2023 DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant ☒ Filed by a party other than the Registran

DEFA14A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant ☒ Filed by a party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2))

April 6, 2023 DEF 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. )

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant ☒ Filed by a party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as permitted by Rule 14

February 21, 2023 EX-22.1

List of Guarantor Subsidiaries (filed as Exhibit 22.1 to LII's Annual Report on Form 10-K filed on February 21, 2023 and incorporated herein by reference).

Exhibit 22.1 List of Guarantor Subsidiaries The following subsidiaries of Lennox International Inc. (the “Company”) are guarantors with respect to the Company’s (1) 3.00% Notes due 2023, (2) 1.35% Notes due 2025, and (3) 1.70% Notes due 2027: Guarantor State or Other Jurisdiction of Formation Advanced Distributor Products LLC Delaware Allied Air Enterprises LLC Delaware Heatcraft Inc. Delaware Hea

February 21, 2023 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-K ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2022 ☐ TRANSITION REPORT PURSUANT TO SECTI

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-K ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2022 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 001-15149 LENNOX INTERNATIONAL INC.

February 21, 2023 EX-3.1

Restated Certificate of Incorporation of Lennox International Inc. (“LII”) (filed as Exhibit 3.1 to LII's Annual Report on Form 10-K filed on February 15, 2022 and incorporated herein by reference).

Exhibit 3.1 RESTATED CERTIFICATE OF INCORPORATION OF LENNOX INTERNATIONAL INC. Lennox International Inc., a corporation organized and existing under the laws of the State of Delaware, hereby certifies as follows: 1.The name of the corporation is Lennox International Inc. The Certificate of Incorporation of the corporation was filed with the Secretary of State of the State of Delaware on August 13,

February 21, 2023 EX-4.7

Tenth Supplemental Indenture, dated as of July 14, 2021, among LII, each existing Guarantor under the Indenture, dated as of May 3, 2010, as subsequently supplemented, and U.S. Bank National Association, as trustee (filed

Exhibit 4.7 TENTH SUPPLEMENTAL INDENTURE This TENTH SUPPLEMENTAL INDENTURE, dated as of July 14, 2021 (this “Tenth Supplemental Indenture”), is among Lennox International Inc., a Delaware corporation (the “Company”), Heatcraft Technologies Inc., a Delaware corporation (“HTI”), Lennox National Account Services Inc., a California corporation (“Account Services”), Lennox Procurement Company Inc., a D

February 21, 2023 EX-21.1

Subsidiaries of LII (filed herewith).

EXHIBIT 21.1 Lennox International Inc. Subsidiaries The following are the subsidiaries of Lennox International Inc., as of February 3, 2023, and the states or jurisdictions in which they are organized. Subsidiaries are indented below their immediate parent entity. The names of certain subsidiaries have been omitted because, considered in the aggregate as a single subsidiary, they would not constit

February 21, 2023 EX-4.8

Description of Securities (filed

Exhibit 4.8 DESCRIPTION OF THE REGISTRANT’S SECURITIES REGISTERED PURSUANT TO SECTION 12 OF THE SECURITIES AND EXCHANGE ACT OF 1934 The following is a summary of the terms and provisions of the common stock, par value $0.01 per share (the “Common Stock”) of Lennox International Inc., a Delaware corporation, and is qualified by reference to our Restated Certificate of Incorporation (“Certificate of

February 21, 2023 EX-3.2

Amended and Restated Bylaws of LII (filed as Exhibit 3.2 to LII's Annual Report on Form 10-K filed on February 15, 2022 and incorporated herein by reference).

Exhibit 3.2 AMENDED AND RESTATED BYLAWS OF LENNOX INTERNATIONAL INC. (A DELAWARE CORPORATION) as of December 13, 2013 ARTICLE I. OFFICES Section 1.Registered Office. The registered office of Lennox International Inc. (the “Corporation”) in the State of Delaware shall be at 2711 Centerville Road, Suite 400, in the City of Wilmington, County of New Castle, and the registered agent in charge thereof

February 9, 2023 SC 13G/A

LII / Lennox International Inc. / VANGUARD GROUP INC - SCHEDULE 13G/A Passive Investment

SC 13G/A 1 tv01293-lennoxinternationali.htm SCHEDULE 13G/A SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 9)* Name of issuer: Lennox International Inc. Title of Class of Securities: Common Stock CUSIP Number: 526107107 Date of Event Which Requires Filing of this Statement: December 30, 2022 Check the appropriate box

January 31, 2023 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (date of earliest event reported): January 31, 2023 LENNOX INTERNATIONAL INC. (Exact name of registrant as specified in its charter) Delaware 001-15149 42-0991521 (State or other jurisdiction of incorporation) (Commiss

January 31, 2023 EX-99.1

LENNOX INTERNATIONAL INC. AND SUBSIDIARIES Consolidated Statements of Operations (Amounts in millions, except per share data) For the Three Months Ended December 31, For the Years Ended December 31, 2022 2021 2022 2021 Net sales $ 1,093.8 $ 964.8 $ 4

Exhibit 99.1 Lennox Reports Record Revenue and EPS for Full Year 2022 Highlights (All comparisons are year-over-year, unless otherwise noted) • Fourth quarter 2022 revenue up 13% to record $1.1 billion, GAAP EPS up 17% to $2.65, adjusted EPS up 12% to $2.63 • Full year 2022 revenue up 13% to record $4.7 billion, GAAP EPS up 12% to record $13.88, and adjusted EPS up 12% to record $14.07 • Reiterati

December 12, 2022 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (date of earliest event reported): December 9, 2022 LENNOX INTERNATI

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (date of earliest event reported): December 9, 2022 LENNOX INTERNATIONAL INC. (Exact name of registrant as specified in its charter) Delaware 001-15149 42-0991521 (State or other jurisdiction of incorporation) (Commiss

December 12, 2022 EX-10.1

Lennox International Inc. Change in Control Severance Plan (filed as Exhibit 10.1 to LII's Current Report on Form 8-K filed on December 12, 2022 and incorporated herein by reference).

EX-10.1 Exhibit 10.1 LENNOX INTERNATIONAL INC. CHANGE IN CONTROL SEVERANCE PLAN ARTICLE I PURPOSE 1.1 Purpose. The Board believes it to be in the best interests of the Company and its shareholders to adopt this Plan to avoid distraction, uncertainty, or risk resulting from a pending or threatened Change in Control. The purpose of this Plan is to provide certain key leaders of the Company with desi

December 2, 2022 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (date of earliest event reported): November 28, 2022 LENNOX INTERNATIONAL INC. (Exact name of registrant as specified in its charter) Delaware 001-15149 42-0991521 (State or other jurisdiction of incorporation) (Commis

November 17, 2022 8-K

Regulation FD Disclosure, Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (date of earliest event reported): November 17, 2022 LENNOX INTERNATIONAL INC. (Exact name of registrant as specified in its charter) Delaware 001-15149 42-0991521 (State or other jurisdiction of incorporation) (Commis

November 17, 2022 EX-99.1

Lennox Announces Key Leadership and Portfolio Changes

Exhibit 99.1 Lennox Announces Key Leadership and Portfolio Changes ? Gary Bedard appointed as President of the Residential segment; Doug Young, current President, retiring after a distinguished 24-year career ? Company exploring strategic alternatives for the Refrigeration segment?s European operations ? Refrigeration to be consolidated with the Commercial segment to accelerate productivity and gr

October 27, 2022 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D. C. 20549 FORM 10-Q _________________________________________________ ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period en

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D. C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2022 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 001-15149 LENNOX INTERNATI

October 27, 2022 EX-25.1

Form T-1 Statement of Eligibility and Qualification under the Trust Indenture Act of 1939.

EX-25.1 Exhibit 25.1 SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM T-1 STATEMENT OF ELIGIBILITY UNDER THE TRUST INDENTURE ACT OF 1939 OF A CORPORATION DESIGNATED TO ACT AS TRUSTEE ☐ Check if an Application to Determine Eligibility of a Trustee Pursuant to Section 305(b)(2) U.S. BANK TRUST COMPANY, NATIONAL ASSOCIATION (Exact name of Trustee as specified in its charter) 91-1821036

October 27, 2022 S-3ASR

As filed with the Securities and Exchange Commission on October 27, 2022

S-3ASR Table of Contents As filed with the Securities and Exchange Commission on October 27, 2022 Registration No.

October 27, 2022 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (date of earliest event reported): October 27, 2022 LENNOX INTERNATI

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (date of earliest event reported): October 27, 2022 LENNOX INTERNATIONAL INC. (Exact name of registrant as specified in its charter) Delaware 001-15149 42-0991521 (State or other jurisdiction of incorporation) (Commiss

October 27, 2022 EX-99.1

LENNOX INTERNATIONAL INC. AND SUBSIDIARIES Consolidated Statements of Operations (Amounts in millions, except per share data) For the Three Months Ended September 30, For the Nine Months Ended September 30, 2022 2021 2022 2021 Net sales $ 1,244.9 $ 1

EX-99.1 Exhibit 99.1 Lennox International Reports Record Third Quarter Results Third Quarter 2022 Highlights (all historical comparisons are year-over-year) • Revenue up 17% to third-quarter record $1.24 billion • GAAP EPS up 17% to $3.99; Adjusted EPS up 21% to third-quarter record $4.10 • Updating 2022 EPS guidance from $13.80-$14.50 to $13.80-$14.20 DALLAS, October 27, 2022 – Lennox Internation

October 27, 2022 EX-FILING FEES

Filing Fee Table.

EX-FILING FEES Exhibit 107.1 Calculation of Filing Fee Tables Form S-3 (Form Type) Lennox International Inc. (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered Securities Security Type Security Class Title Fee Calculation Rule Amount Registered Proposed Maximum Offering Price Per Unit Maximum Aggregate Offering Price Fee Rate Amount of Registration Fee Debt Debt Secur

July 28, 2022 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (date of earliest event reported): July 28, 2022 LENNOX INTERNATIONAL INC. (Exact name of registrant as specified in its charter) Delaware 001-15149 42-0991521 (State or other jurisdiction of incorporation) (Commission

July 28, 2022 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D. C. 20549 FORM 10-Q _________________________________________________ ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period en

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D. C. 20549 FORM 10-Q ? QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2022 OR ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 001-15149 LENNOX INTERNATIONAL

July 28, 2022 EX-99.1

LENNOX INTERNATIONAL INC. AND SUBSIDIARIES Consolidated Statements of Operations (Amounts in millions, except per share data) For the Three Months Ended June 30, For the Six Months Ended June 30, 2022 2021 2022 2021 Net sales $ 1,366.3 $ 1,239.0 $ 2,

Exhibit 99.1 Lennox International Reports Record Revenue and Profit in Second Quarter ? Revenue up 10% to record $1.37 billion ? GAAP EPS up 10% to record $4.96; Adjusted EPS up 9% to record $5.00 ? Repurchased $100 million of stock and paid $33 million in dividends ? Raising low end of 2022 EPS guidance from $13.50-$14.50 to $13.80-$14.50 DALLAS, July 28, 2022 ? Lennox International Inc. (NYSE: L

May 31, 2022 EX-1.01

CONFLICT MINERALS REPORT Reporting Period from January 1, 2021 to December 31, 2021 LENNOX INTERNATIONAL INC.

Exhibit 1.01 CONFLICT MINERALS REPORT Reporting Period from January 1, 2021 to December 31, 2021 LENNOX INTERNATIONAL INC. This Conflict Minerals Report (this ?Report?) of Lennox International Inc. (including its consolidated subsidiaries, the ?Company?) has been prepared pursuant to Rule 13p-1 and Form SD promulgated under the Securities Exchange Act of 1934 for the reporting period from January

May 31, 2022 SD

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM SD SPECIALIZED DISCLOSURE REPORT LENNOX INTERNATIONAL INC. (Exact name of registrant as specified in its charter) Delaware 001-15149 42-0991521 (State or other jurisdiction

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM SD SPECIALIZED DISCLOSURE REPORT LENNOX INTERNATIONAL INC. (Exact name of registrant as specified in its charter) Delaware 001-15149 42-0991521 (State or other jurisdiction of incorporation) (Commission File Number) (IRS Employer Identification No.) 2140 Lake Park Blvd. Richardson, Texas 75080 (Address of principal execut

May 24, 2022 EX-24.1

Power of Attorney

Exhibit 24.1 POWER OF ATTORNEY KNOW ALL PERSONS BY THESE PRESENTS, that each of the undersigned officers and directors of Lennox International Inc., a Delaware corporation (the ?Registrant?), hereby constitutes and appoints Alok Maskara, Daniel M. Sessa and John Torres, or any of them, each acting alone, as the true and lawful attorney-in-fact or agent, or attorneys-in-fact or agents, for each of

May 24, 2022 EX-99.1

Lennox International Inc. 2022 Employee Stock Purchase Plan

Exhibit 99.1 LENNOX INTERNATIONAL INC. 2022 EMPLOYEE STOCK PURCHASE PLAN SECTION 1. PURPOSE. This Lennox International Inc. 2022 Employee Stock Purchase Plan (the ?Plan?) is intended to advance the interests of Lennox International Inc., a Delaware corporation (the ?Company?) and its stockholders by allowing employees of the Company and those subsidiaries of the Company that participate in the Pla

May 24, 2022 EX-FILING FEES

Filing Fee Table

Exhibit 107 CALCULATION OF FEE TABLE FORM S-8 (Form Type) LENNOX INTERNATIONAL INC.

May 24, 2022 S-8

As filed with the Securities and Exchange Commission on May 24, 2022

As filed with the Securities and Exchange Commission on May 24, 2022 Registration No.

May 23, 2022 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Submission of Matters to a Vote of Security Holders

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (date of earliest event reported): May 19, 2022 LENNOX INTERNATIONAL INC. (Exact name of registrant as specified in its charter) Delaware 001-15149 42-0991521 (State or other jurisdiction of incorporation) (Commission

May 10, 2022 DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. )

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant ? Filed by a party other than the Registrant ? Check the appropriate box: ? Preliminary Proxy Statement ? Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ? Defin

April 25, 2022 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D. C. 20549 FORM 10-Q _________________________________________________ ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period en

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D. C. 20549 FORM 10-Q ? QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2022 OR ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 001-15149 LENNOX INTERNATIONAL

April 25, 2022 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (date of earliest event reported): April 25, 2022 LENNOX INTERNATIONAL INC. (Exact name of registrant as specified in its charter) Delaware 001-15149 42-0991521 (State or other jurisdiction of incorporation) (Commissio

April 25, 2022 EX-99.1

LENNOX INTERNATIONAL INC. AND SUBSIDIARIES Consolidated Statements of Operations (Amounts in millions, except per share data) For the Three Months Ended March 31, 2022 2021 Net sales $ 1,013.4 $ 930.5 Cost of goods sold 745.2 674.0 Gross profit 268.2

Exhibit 99.1 Lennox International Reports Record First Quarter Revenue and Earnings Per Share ? Revenue up 9% to first-quarter record $1.01 billion ? GAAP EPS up 4% to first-quarter record $2.29 ? Adjusted EPS up 4% to first-quarter record $2.36 ? Repurchased $200 million of stock in the quarter ? Raising 2022 guidance for revenue growth from 5-10% to 7-11% ? Reiterating 2022 guidance for GAAP and

April 7, 2022 DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. )

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant ? Filed by a party other than the Registrant ? Check the appropriate box: ? Preliminary Proxy Statement ? Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ? Defin

April 7, 2022 DEF 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant ☒ Filed by a party other than the Registran

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant ? Filed by a party other than the Registrant ? Check the appropriate box: ? Preliminary Proxy Statement ? Confidential, for Use of the Commission Only (as permitted by Rule 14

March 23, 2022 EX-99.1

Lennox International Inc. Appoints Alok Maskara New Chief Executive Officer

Exhibit 99.1 Lennox International Inc. Appoints Alok Maskara New Chief Executive Officer DALLAS, March 23, 2022 ? Lennox International Inc. (NYSE: LII), a global leader in energy-efficient climate control solutions, has appointed Alok Maskara as chief executive officer effective on May 9, 2022. Mr. Maskara succeeds Todd Bluedorn, who announced in July 2021 his plans to step down by mid-2022 as Cha

March 23, 2022 EX-10.2

Indemnification Agreement entered into between LII and Alok Maskara (filed as Exhibit 10.2 to LII's Current Report on Form 8-K filed on March 23, 2022 and incorporated herein by reference).

Exhibit 10.2 LENNOX INTERNATIONAL INC. INDEMNIFICATION AGREEMENT THIS INDEMNIFICATION AGREEMENT (the ?Agreement?) is made by and between Lennox International Inc., a Delaware corporation (the ?Company?), and Alok Maskara (the ?Indemnitee?), and is effective on Indemnitee?s commencement of employment with the Company (the ?Effective Date?). Background Statement and Recitals Highly competent and exp

March 23, 2022 8-K

Regulation FD Disclosure, Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (date of earliest event reported): March 17, 2022 LENNOX INTERNATIONAL INC. (Exact name of registrant as specified in its charter) Delaware 001-15149 42-0991521 (State or other jurisdiction of incorporation) (Commissio

March 23, 2022 EX-10.3

Change in Control Agreement entered into between LII and Alok Maskara (filed as Exhibit 10.3 to LII's Current Report on Form 8-K filed on March 23, 2022 and incorporated herein by reference).

Exhibit 10.3 LENNOX INTERNATIONAL INC. CHANGE IN CONTROL AGREEMENT THIS CHANGE IN CONTROL AGREEMENT (this ?Agreement?) is made by and between Lennox International Inc., a Delaware corporation (the ?Company?), and Alok Maskara (?Executive?), and is effective on Executive?s commencement of employment with the Company (the ?Effective Date?). WHEREAS, the Company considers it essential to the best int

March 23, 2022 EX-10.1

Employment Agreement entered into between LII and Alok Maskara (filed as Exhibit 10.1 to LII’s Current Report on Form 8-K filed on March 23, 2022 and incorporated herein by reference).

Exhibit 10.1 LENNOX INTERNATIONAL INC. EMPLOYMENT AGREEMENT Todd Teske Lead Independent Director Dear Alok, As a key employee, essential to the company?s future profitability, growth, and financial strength, Lennox International Inc. is providing you with this letter agreement (including exhibits) in order to establish the material terms of your employment with Lennox (the ?Agreement?). The specif

February 15, 2022 EX-22.1

List of Guarantor Subsidiaries (filed as Exhibit 22.1 to LII's Annual Report on Form 10-K filed on February 15, 2022 and incorporated herein by reference).

Exhibit 22.1 List of Guarantor Subsidiaries The following subsidiaries of Lennox International Inc. (the ?Company?) are guarantors with respect to the Company?s (1) 3.00% Notes due 2023, (2) 1.35% Notes due 2025, and (3) 1.70% Notes due 2027: Guarantor State or Other Jurisdiction of Formation Advanced Distributor Products LLC Delaware Allied Air Enterprises LLC Delaware Heatcraft Inc. Delaware Hea

February 15, 2022 EX-3.2

Amended and Restated Bylaws of Lennox International Inc. (incorporated herein by reference to Exhibit 3.2 to Lennox International Inc.’s Form 10-K for the year ended December 31, 2021 (File No. 001-15149), filed on February 15, 2022).

Exhibit 3.2 AMENDED AND RESTATED BYLAWS OF LENNOX INTERNATIONAL INC. (A DELAWARE CORPORATION) as of December 13, 2013 ARTICLE I. OFFICES Section 1.Registered Office. The registered office of Lennox International Inc. (the ?Corporation?) in the State of Delaware shall be at 2711 Centerville Road, Suite 400, in the City of Wilmington, County of New Castle, and the registered agent in charge thereof

February 15, 2022 EX-4.8

Exhibit 4.8

Exhibit 4.8 DESCRIPTION OF THE REGISTRANT?S SECURITIES REGISTERED PURSUANT TO SECTION 12 OF THE SECURITIES AND EXCHANGE ACT OF 1934 The following is a summary of the terms and provisions of the common stock, par value $0.01 per share (the ?Common Stock?) of Lennox International Inc., a Delaware corporation, and is qualified by reference to our Restated Certificate of Incorporation (?Certificate of

February 15, 2022 EX-3.1

Restated Certificate of Incorporation of Lennox International Inc. (incorporated herein by reference to Exhibit 3.1 to Lennox International Inc.’s Form 10-K for the year ended December 31, 2021 (File No. 001-15149), filed on February 15, 2022).

Exhibit 3.1 RESTATED CERTIFICATE OF INCORPORATION OF LENNOX INTERNATIONAL INC. Lennox International Inc., a corporation organized and existing under the laws of the State of Delaware, hereby certifies as follows: 1.The name of the corporation is Lennox International Inc. The Certificate of Incorporation of the corporation was filed with the Secretary of State of the State of Delaware on August 13,

February 15, 2022 EX-4.7

Tenth Supplemental Indenture, dated as of July 14, 2021, among LII, each existing Guarantor under the Indenture, dated as of May 3, 2010, as subsequently supplemented, and U.S. Bank National Association, as trustee (filed as Exhibit 4.7 to LII's Annual Report on Form 10-K filed on February 15, 2022 and incorporated herein by reference).

Exhibit 4.7 TENTH SUPPLEMENTAL INDENTURE This TENTH SUPPLEMENTAL INDENTURE, dated as of July 14, 2021 (this ?Tenth Supplemental Indenture?), is among Lennox International Inc., a Delaware corporation (the ?Company?), Heatcraft Technologies Inc., a Delaware corporation (?HTI?), Lennox National Account Services Inc., a California corporation (?Account Services?), Lennox Procurement Company Inc., a D

February 15, 2022 EX-21.1

Subsidiaries of LII (filed herewith).

EX-21.1 6 lii-ex21120211231x10k.htm EX-21.1 EXHIBIT 21.1 Lennox International Inc. Subsidiaries The following are the subsidiaries of Lennox International Inc., as of February 6, 2022, and the states or jurisdictions in which they are organized. Subsidiaries are indented below their immediate parent entity. The names of certain subsidiaries have been omitted because, considered in the aggregate as

February 15, 2022 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-K ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2021 ☐ TRANSITION REPORT PURSUANT TO SECTI

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-K ? ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2021 OR ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 001-15149 LENNOX INTERNATIONAL INC.

February 10, 2022 SC 13G/A

LII / Lennox International Inc. / VANGUARD GROUP INC - SCHEDULE 13G/A Passive Investment

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 8)* Name of issuer: Lennox International Inc. Title of Class of Securities: Common Stock CUSIP Number: 526107107 Date of Event Which Requires Filing of this Statement: December 31, 2021 Check the appropriate box to designate the rule pursuant to which this Schedule is fi

February 1, 2022 EX-99.1

LENNOX INTERNATIONAL INC. AND SUBSIDIARIES Consolidated Statements of Operations (Amounts in millions, except per share data) For the Three Months Ended December 31, (Unaudited) For the Years Ended December 31, 2021 2020 2021 2020 Net sales $ 964.8 $

Exhibit 99.1 Lennox International Reports Record Revenue and EPS for 2021 ? Fourth-quarter revenue up 6% to fourth-quarter record $965 million ? Fourth-quarter GAAP EPS from continuing operations of $2.27, compared to $2.91 in the prior-year quarter; adjusted EPS from continuing operations of $2.35, compared to $2.89 in the prior-year quarter ? Full year 2021 revenue up 15% to record $4.2 billion,

February 1, 2022 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (date of earliest event reported): February 1, 2022 LENNOX INTERNATIONAL INC. (Exact name of registrant as specified in its charter) Delaware 001-15149 42-0991521 (State or other jurisdiction of incorporation) (Commiss

December 14, 2021 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (date of earliest event reported): December 10, 2021 LENNOX INTERNATIONAL INC. (Exact name of registrant as specified in its charter) Delaware 001-15149 42-0991521 (State or other jurisdiction of incorporation) (Commis

December 14, 2021 EX-10.1

Form of Award Agreement, dated December 10, 2021, between Lennox International Inc. and certain named executive officers (filed as Exhibit 10.1 to LII’s Current Report on Form 8-K filed on December 14, 2021 and incorporated herein by reference).

Exhibit 10.1 LENNOX INTERNATIONAL INC. Long-Term Incentive Award Agreement U.S. Employees ? Vice President and Above THIS AGREEMENT (?Agreement?) is made as of December 10, 2021 (the ?Date of Grant?), by and between Lennox International Inc., a Delaware corporation (the ?Company?), and (?Participant?). The Company has adopted the Lennox International Inc. 2019 Equity and Incentive Compensation Pla

November 17, 2021 EX-10.1

Amendment No. 11 to Amended and Restated Receivables Purchase Agreement, dated as of November 12, 2021, among LPAC Corp., as the Seller, Lennox Industries Inc., as the Master Servicer, Lennox International Inc., Victory Receivables Corporation, as a Purchaser, MUFG Bank, Ltd., formerly known as The Bank of Tokyo-Mitsubishi UFJ, Ltd., as administrative agent for the Investors, the purchaser agent for the MUFG Purchaser Group and a MUFG Liquidity Bank, Wells Fargo Bank, N.A., as the purchaser agent for the WFB Purchaser Group and a WFB Liquidity Bank, and PNC Bank, N.A., as the purchaser agent for the PNC Purchaser Group and a PNC Liquidity Bank, including attachments (filed as Exhibit 10.1 to LII’s Current Report on Form 8-K filed on November 12, 2021 and incorporated herein by reference).

Exhibit 10.1 AMENDMENT NO. 11 TO AMENDED AND RESTATED RECEIVABLES PURCHASE AGREEMENT This AMENDMENT NO. 11, dated as of November 12, 2021 (this ?Amendment?), is made with respect to that certain Amended and Restated Receivables Purchase Agreement, dated as of November 18, 2011 (as amended, restated, supplemented or otherwise modified, the ?Agreement?), among LPAC CORP., a Delaware corporation ( th

November 17, 2021 8-K

Entry into a Material Definitive Agreement, Financial Statements and Exhibits, Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (date of earliest event reported): November 12, 2021 LENNOX INTERNATIONAL INC. (Exact name of registrant as specified in its charter) Delaware 001-15149 42-0991521 (State or other jurisdiction of incorporation) (Commis

October 25, 2021 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D. C. 20549 FORM 10-Q _________________________________________________ ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period en

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D. C. 20549 FORM 10-Q ? QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2021 OR ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 001-15149 LENNOX INTERNATI

October 25, 2021 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (date of earliest event reported): October 25, 2021 LENNOX INTERNATIONAL INC. (Exact name of registrant as specified in its charter) Delaware 001-15149 42-0991521 (State or other jurisdiction of incorporation) (Commiss

October 25, 2021 EX-10.3

Form of Long-Term Incentive Award Agreement for Non-U.S. Employees (Vice President and Above) (for used under the 2019 Incentive Plan). (filed herewith)

Exhibit 10.3 LENNOX INTERNATIONAL INC. Long-Term Incentive Award Agreement Non-U.S. Employees ? Vice President THIS AGREEMENT (?Agreement?) is made as of , 20 (the ?Date of Grant?), by and between Lennox International Inc., a Delaware corporation (the ?Company?), and (?Participant?). The Company has adopted the Lennox International Inc. 2019 Equity and Incentive Compensation Plan (as amended and r

October 25, 2021 EX-22.1

List of Guarantor Subsidiaries

Exhibit 22.1 List of Guarantor Subsidiaries The following subsidiaries of Lennox International Inc. (the ?Company?) are guarantors with respect to the Company?s (1) 3.00% Notes due 2023, (2) 1.35% Notes due 2025, and (3) 1.70% Notes due 2027: Guarantor State or Other Jurisdiction of Formation Advanced Distributor Products LLC Delaware Allied Air Enterprises LLC Delaware Heatcraft Inc. Delaware Hea

October 25, 2021 EX-99.1

LENNOX INTERNATIONAL INC. AND SUBSIDIARIES Consolidated Statements of Operations (Amounts in millions, except per share data) For the Three Months Ended September 30, For the Nine Months Ended September 30, 2021 2020 2021 2020 Net sales $ 1,059.9 $ 1

Exhibit-99.1 Lennox International Reports Third Quarter Results ? Global supply chain and Covid-19 disruptions to production and labor force negatively impacted third-quarter revenue by approximately $75 million and operating profit by approximately $25 million ? Demand strong, but production constraints limited growth; revenue up slightly to third-quarter record $1.06 billion ? GAAP EPS from cont

July 26, 2021 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (date of earliest event reported): July 26, 2021 LENNOX INTERNATIONAL INC. (Exact name of registrant as specified in its charter) Delaware 001-15149 42-0991521 (State or other jurisdiction of incorporation) (Commission

July 26, 2021 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D. C. 20549 FORM 10-Q _________________________________________________ ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period en

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D. C. 20549 FORM 10-Q ? QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2021 OR ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 001-15149 LENNOX INTERNATIONAL

July 26, 2021 EX-22.1

List of Guarantor Subsidiaries

Exhibit 22.1 List of Guarantor Subsidiaries The following subsidiaries of Lennox International Inc. (the ?Company?) are guarantors with respect to the Company?s (1) 3.00% Notes due 2023, (2) 1.35% Notes due 2025, and (3) 1.70% Notes due 2027: Guarantor State or Other Jurisdiction of Formation Advanced Distributor Products LLC Delaware Allied Air Enterprises LLC Delaware Heatcraft Inc. Delaware Hea

July 26, 2021 EX-99.1

LENNOX INTERNATIONAL INC. AND SUBSIDIARIES Consolidated Statements of Operations (Amounts in millions, except per share data) For the Three Months Ended June 30, For the Six Months Ended June 30, 2021 2020 2021 2020 Net sales $ 1,239.0 $ 941.3 $ 2,16

Exhibit-99.1 Lennox International Reports Record Revenue and Profit in Second Quarter ?Revenue up 32% to record $1.24 billion on strong growth in all businesses ?GAAP EPS from continuing operations up 72% to record $4.51 ?Adjusted EPS from continuing operations up 54% to record $4.57 ?Repurchased $200 million of stock and announced 19% dividend increase ?As previously announced on July 14: raising

July 15, 2021 EX-10.2

Guaranty Agreement, dated as of July 14, 2021, among the guarantors party thereto and JPMorgan Chase Bank, N.A., as Administrative Agent

Exhibit 10.2 EXECUTION VERSION GUARANTY AGREEMENT dated as of July 14, 2021 among THE GUARANTORS PARTY HERETO and JPMORGAN CHASE BANK, N.A., as the Administrative Agent TABLE OF CONTENTS Page ARTICLE I Definitions SECTION 1.01. Credit Agreement 1 SECTION 1.02. Other Defined Terms 1 ARTICLE II The Guarantees SECTION 2.01. Guarantee 2 ARTICLE III Representations and Warranties ARTICLE IV Miscellaneo

July 15, 2021 8-K

Entry into a Material Definitive Agreement, Termination of a Material Definitive Agreement, Financial Statements and Exhibits, Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (date of earliest event reported): July 14, 2021 LENNOX INTERNATIONAL INC. (Exact name of registrant as specified in its charter) Delaware 001-15149 42-0991521 (State or other jurisdiction of incorporation) (Commission

July 15, 2021 EX-10.1

Credit Agreement, dated as of July 14, 2021, among Lennox International Inc., a Delaware corporation, the Banks party thereto, and JPMorgan Chase Bank, N.A., as Administrative Agent ( filed as Exhibit 10.1 to LII's Current Report on Form 8-K filed on July 15,2021, and incorporated herein by reference).

Exhibit 10.1 EXECUTION VERSION US$750,000,000 CREDIT AGREEMENT dated as of July 14, 2021 among Lennox International Inc., as the Borrower, The Banks Listed Herein and JPMorgan Chase Bank, N.A., as Administrative Agent Bank of America, N.A., Wells Fargo Bank, N.A., MUFG Bank, Ltd. and U.S. Bank National Association, as Syndication Agents, PNC Bank, National Association, Regions Bank and Truist Bank

July 14, 2021 EX-10.1

Retention Agreement, dated July 12, 2021, between Lennox International Inc. and Douglas L. Young

Exhibit 10.1 [Lennox International letterhead] CONFIDENTIAL RETENTION AGREEMENT July 12, 2021 Douglas L. Young Executive Vice President President & Chief Operating Officer Residential Heating & Cooling Dear Doug, The Board of Directors greatly values your contributions and wants to secure your commitment to remain employed with the Company until at least June 30, 2023. To encourage your continued

July 14, 2021 EX-99.1

Lennox International Announces CEO Transition

Exhibit 99.1 Lennox International Announces CEO Transition Todd Bluedorn to Step Down as Chairman and CEO by Mid-2022 Board has Commenced a Search for LII?s Next CEO Company Raises 2021 Full-Year Financial Guidance DALLAS, July 14, 2021 ? The Board of Directors of Lennox International Inc. (NYSE: LII) today announced that after 15 years, Todd Bluedorn informed the Board he will be stepping down as

July 14, 2021 8-K

Regulation FD Disclosure, Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (date of earliest event reported): July 8, 2021 LENNOX INTERNATIONAL INC. (Exact name of registrant as specified in its charter) Delaware 001-15149 42-0991521 (State or other jurisdiction of incorporation) (Commission

May 25, 2021 SD

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM SD SPECIALIZED DISCLOSURE REPORT LENNOX INTERNATIONAL INC. (Exact name of registrant as specified in its charter)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM SD SPECIALIZED DISCLOSURE REPORT LENNOX INTERNATIONAL INC. (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation) 001-15149 (Commission File Number) 42-0991521 (IRS Employer Identification No.) 2140 Lake Park Blvd. Richardson, Texas 75080 (Address of principal execut

May 25, 2021 EX-1.01

Conflict Minerals Report of Lennox International Inc.

Exhibit 1.01 CONFLICT MINERALS REPORT Reporting Period from January 1, 2020 to December 31, 2020 LENNOX INTERNATIONAL INC. This Conflict Minerals Report (this ?Report?) of Lennox International Inc. (including its consolidated subsidiaries, the ?Company?) has been prepared pursuant to Rule 13p-1 and Form SD promulgated under the Securities Exchange Act of 1934 for the reporting period from January

May 24, 2021 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits, Submission of Matters to a Vote of Security Holders

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (date of earliest event reported): May 20, 2021 LENNOX INTERNATIONAL INC. (Exact name of registrant as specified in its charter) Delaware 001-15149 42-0991521 (State or other jurisdiction of incorporation) (Commission

April 26, 2021 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (date of earliest event reported): April 26, 2021 LENNOX INTERNATIONAL INC. (Exact name of registrant as specified in its charter) Delaware 001-15149 42-0991521 (State or other jurisdiction of incorporation) (Commissio

April 26, 2021 10-Q

Quarterly Report - 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D. C. 20549 FORM 10-Q ? QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2021 OR ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 001-15149 LENNOX INTERNATIONAL

April 26, 2021 EX-99.1

LENNOX INTERNATIONAL INC. AND SUBSIDIARIES Consolidated Statements of Operations (Amounts in millions, except per share data) For the Three Months Ended March 31, 2021 2020 Net sales $ 930.5 $ 723.8 Cost of goods sold 674.0 558.1 Gross profit 256.5 1

Exhibit-99.1 Lennox International Reports Record First Quarter Revenue and Profit and Raises 2021 Guidance ? Revenue up 29% to first-quarter record $931 million, led by 37% Residential growth ? GAAP EPS from continuing operations up 588% to first-quarter record $2.20 ? Adjusted EPS from continuing operations up 305% to first-quarter record $2.27 ? Repurchased $200 million of stock and $200 million

April 26, 2021 EX-22.1

List of Guarantor Subsidiaries

Exhibit 22.1 List of Guarantor Subsidiaries The following subsidiaries of Lennox International Inc. (the ?Company?) are guarantors with respect to the Company?s 3.00% Notes due 2023: Guarantor State or Other Jurisdiction of Formation Advanced Distributor Products LLC Delaware Allied Air Enterprises LLC Delaware Heatcraft Inc. Delaware Heatcraft Refrigeration Products LLC Delaware Lennox Global LLC

April 8, 2021 DEFA14A

- DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant ? Filed by a party other than the Registrant ? Check the appropriate box: ? Preliminary Proxy Statement ? Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ? Defin

April 8, 2021 DEF 14A

- DEF 14A

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant ? Filed by a party other than the Registrant ? Check the appropriate box: ? Preliminary Proxy Statement ? Confidential, for Use of the Commission Only (as permitted by Rule 14

February 16, 2021 EX-4.9

Description of Securities (filed herewith)

Exhibit 4.[9] DESCRIPTION OF THE REGISTRANT?S SECURITIES REGISTERED PURSUANT TO SECTION 12 OF THE SECURITIES AND EXCHANGE ACT OF 1934 As of February 7, 2021, Lennox International Inc. has the following classes of securities registered under Section 12 of the Securities Exchange Act of 1934, as amended (the ?Exchange Act?): (1) our Common Stock, (2) our 3.000% Notes due 2023, (3) our 1.350% Notes d

February 16, 2021 10-K

Annual Report - 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-K ? ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2020 OR ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 001-15149 LENNOX INTERNATIONAL INC.

February 16, 2021 EX-22.1

List of Guarantor Subsidiaries

Exhibit 22.1 List of Guarantor Subsidiaries The following subsidiaries of Lennox International Inc. (the ?Company?) are guarantors with respect to the Company?s 3.00% Notes due 2023: Guarantor State or Other Jurisdiction of Formation Advanced Distributor Products LLC Delaware Allied Air Enterprises LLC Delaware Heatcraft Inc. Delaware Heatcraft Refrigeration Products LLC Delaware Lennox Global LLC

February 16, 2021 EX-21.1

Subsidiaries of LII (filed herewith).

EXHIBIT 21.1 Lennox International Inc. Subsidiaries The following are the subsidiaries of Lennox International Inc., as of February 7, 2021, and the states or jurisdictions in which they are organized. Subsidiaries are indented below their immediate parent entity. The names of certain subsidiaries have been omitted because, considered in the aggregate as a single subsidiary, they would not constit

February 10, 2021 SC 13G/A

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 7)*

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 7)* Name of issuer: Lennox International Inc. Title of Class of Securities: Common Stock CUSIP Number: 526107107 Date of Event Which Requires Filing of this Statement: December 31, 2020 Check the appropriate box to designate the rule pursuant to which this Schedule is fi

February 2, 2021 EX-99.1

LENNOX INTERNATIONAL INC. AND SUBSIDIARIES Consolidated Statements of Operations (Amounts in millions, except per share data) For the Three Months Ended December 31, (Unaudited) For the Years Ended December 31, 2020 2019 2020 2019 Net sales $ 914.0 $

Exhibit-99.1 Lennox International Reports Record Fourth Quarter Revenue and Record Cash Flow for the Year •Fourth-quarter record company revenue of $914 million, up 3% •Fourth-quarter GAAP EPS from continuing operations of $2.91 compared to $2.92 in the prior-year quarter; adjusted EPS from continuing operations up 18% to a fourth-quarter record of $2.89 •Generated record $612 million of cash from

February 2, 2021 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition - 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (date of earliest event reported): February 2, 2021 LENNOX INTERNATIONAL INC. (Exact name of registrant as specified in its charter) Delaware 001-15149 42-0991521 (State or other jurisdiction of incorporation) (Commiss

October 19, 2020 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition - 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (date of earliest event reported): October 19, 2020 LENNOX INTERNATIONAL INC. (Exact name of registrant as specified in its charter) Delaware 001-15149 42-0991521 (State or other jurisdiction of incorporation) (Commiss

October 19, 2020 EX-22.1

List of Guarantor Subsidiaries

Exhibit 22.1 List of Guarantor Subsidiaries The following subsidiaries of Lennox International Inc. (the “Company”) are guarantors with respect to the Company’s 3.00% Notes due 2023: Guarantor State or Other Jurisdiction of Formation Advanced Distributor Products LLC Delaware Allied Air Enterprises LLC Delaware Heatcraft Inc. Delaware Heatcraft Refrigeration Products LLC Delaware Lennox Global LLC

October 19, 2020 10-Q

Quarterly Report - 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D. C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2020 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 001-15149 LENNOX INTERNATI

October 19, 2020 EX-99.1

LENNOX INTERNATIONAL INC. AND SUBSIDIARIES Consolidated Statements of Operations (Amounts in millions, except per share data) For the Three Months Ended September 30, For the Nine Months Ended September 30, 2020 2019 2020 2019 Net sales $ 1,055.0 $ 1

Exhibit-99.1 Lennox International Reports Record Third Quarter Revenue and Profit and Raises 2020 Guidance •Revenue up 2% to third-quarter record $1.06 billion, led by 13% Residential growth •GAAP EPS from continuing operations up 16% to record $3.42 •Adjusted EPS from continuing operations up 6% to third-quarter record $3.53 •Raising 2020 guidance for adjusted revenue from a decline of 10-15% to

July 30, 2020 EX-1.1

Underwriting Agreement, dated as of July 22, 2020, by and among the Company, the guarantors party thereto, and J.P. Morgan Securities LLC and Wells Fargo Securities, LLC, as representatives of the several underwriters named therein (filed as Exhibit 1.1 to LII’s Current Report on Form 8-K filed on July 30, 2020, and incorporated herein by reference).

EX-1.1 Exhibit 1.1 UNDERWRITING AGREEMENT $ 600,000,000 $ 300,000,000 1.350% Senior Notes due 2025 $ 300,000,000 1.700% Senior Notes due 2027 LENNOX INTERNATIONAL INC. July 22, 2020 J.P. Morgan Securities LLC Wells Fargo Securities, LLC as Representatives of the several Underwriters named in Schedule 1 hereto c/o J.P. Morgan Securities LLC 383 Madison Avenue New York, New York 10179 Wells Fargo Se

July 30, 2020 EX-10.1

Seventh Amended and Restated Credit Facility Agreement, dated as of July 30, 2020, among Lennox International Inc., a Delaware corporation, the Lenders party thereto, and JPMorgan Chase Bank, N.A., as Administrative Agent (filed as Exhibit 10.1 to LII’s Current Report on Form 8-K filed on July 30, 2020, and incorporated herein by reference).

EX-10.1 Exhibit 10.1 EXECUTION VERSION SEVENTH AMENDED AND RESTATED CREDIT FACILITY AGREEMENT dated as of July 30, 2020 among LENNOX INTERNATIONAL INC., as the Borrower, The Lenders Party Hereto JPMORGAN CHASE BANK, N.A. as Administrative Agent, BANK OF AMERICA, N.A., and WELLS FARGO BANK, N.A., MUFG BANK, LTD. (formerly known as The Bank of Tokyo-Mitsubishi UFJ, Ltd.), and U.S. BANK NATIONAL ASSO

July 30, 2020 8-K

Entry into a Material Definitive Agreement, Financial Statements and Exhibits, Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (date of earliest event reported): July 30, 2020 LENNOX INTERNATIONAL INC. (Exact name of registrant as specified in its charter) Delaware 001-15149 42-0991521 (State or other jurisdiction of incorporation) (Commission

July 30, 2020 EX-4.2

Ninth Supplemental Indenture, dated as of July 30, 2020, among LII, each existing Guarantor under the Indenture, dated as of May 3, 2010, as subsequently supplemented, and U.S. Bank National Association, as trustee (filed as Exhibit 4.2 to LII’s Current Report on Form 8-K filed on July 30, 2020 and incorporated herein by reference).

EX-4.2 Exhibit 4.2 NINTH SUPPLEMENTAL INDENTURE among LENNOX INTERNATIONAL INC., as Issuer EACH OF THE GUARANTORS PARTY HERETO, as Guarantors and U.S. BANK NATIONAL ASSOCIATION, as Trustee Dated as of July 30, 2020 Supplemental to the Indenture for Senior Debt Securities Dated as of May 3, 2010 1.350% Notes due 2025 1.700% Notes due 2027 TABLE OF CONTENTS PAGE ARTICLE 1 SCOPE OF SUPPLEMENTAL INDEN

July 24, 2020 424B5

CALCULATION OF REGISTRATION FEE Title of each Class of Securities to be Registered Amount to be Registered Maximum Offering Price Per Unit Maximum Aggregate Offering Price Amount of Registration Fee (1) 1.350% Senior Notes due 2025 $300,000,000 99.90

424B5 Table of Contents Filed Pursuant to Rule 424(b)(5) Registration No. 333-234283 CALCULATION OF REGISTRATION FEE Title of each Class of Securities to be Registered Amount to be Registered Maximum Offering Price Per Unit Maximum Aggregate Offering Price Amount of Registration Fee (1) 1.350% Senior Notes due 2025 $300,000,000 99.908% $299,724,000 $38,904.18 1.700% Senior Notes due 2027 $300,000,

July 22, 2020 424B5

Joint Book-Running Managers J.P. Morgan Wells Fargo Securities BofA Securities MUFG

424B5 Table of Contents This preliminary prospectus supplement relates to an effective registration statement under the Securities Act of 1933, but is not complete and may be changed.

July 22, 2020 FWP

Lennox International Inc. Pricing Term Sheet July 22, 2020 Issuer: Lennox International Inc. Title of Securities: 1.350% Senior Notes due 2025 (the “2025 notes”) 1.700% Senior Notes due 2027 (the “2027 notes”) Guarantors: Advanced Distributor Product

FWP Filed pursuant to Rule 433 Registration No. 333-234283 Lennox International Inc. Pricing Term Sheet July 22, 2020 Issuer: Lennox International Inc. Title of Securities: 1.350% Senior Notes due 2025 (the “2025 notes”) 1.700% Senior Notes due 2027 (the “2027 notes”) Guarantors: Advanced Distributor Products LLC Allied Air Enterprises LLC Heatcraft Inc. Heatcraft Refrigeration Products LLC Lennox

July 21, 2020 POSASR

- POSASR

POSASR As filed with the Securities and Exchange Commission on July 20, 2020 Registration No.

July 21, 2020 S-8 POS

- S-8 POS

S-8 POS As filed with the Securities and Exchange Commission on July 20, 2020 Registration No.

July 20, 2020 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (date of earliest event reported): July 20, 2020 LENNOX INTERNATIONAL INC. (Exact name of registrant as specified in its charter) Delaware 001-15149 42-0991521 (State or other jurisdiction of incorporation) (Commission

July 20, 2020 EX-99.1

LENNOX INTERNATIONAL INC. AND SUBSIDIARIES Consolidated Statements of Operations (Amounts in millions, except per share data) For the Three Months Ended June 30, For the Six Months Ended June 30, 2020 2019 2020 2019 Net sales $ 941.3 $ 1,099.1 $ 1,66

Exhibit-99.1 Lennox International Reports Second Quarter Results and Raises 2020 Guidance •Revenue down 14%, impacted by the COVID-19 pandemic •GAAP EPS from continuing operations of $2.62, down 7% •Adjusted EPS from continuing operations of $2.97, down 21% •Raising 2020 guidance for adjusted revenue from a decline of 11-17% to a decline of 10-15% •Raising 2020 guidance for GAAP EPS from continuin

July 20, 2020 EX-22

List of Guarantor Subsidiaries

Exhibit 22 List of Guarantor Subsidiaries The following subsidiaries of Lennox International Inc.

July 20, 2020 EX-4.7

Eighth Supplemental Indenture, dated as of May 22, 2020, among Lennox Switzerland GmbH, Lennox International Inc., each other existing Guarantor under the Indenture, dated as of May 3, 2010, as subsequently supplemented, and US Bank National Association, as trustee (filed as Exhibit 4.7 to LII’s Quarterly Report on Form 10-Q filed on July 20, 2020, and incorporated herein by reference).

EXECUTION VERSION Exhibit 4.7 EIGHTH SUPPLEMENTAL INDENTURE This EIGHTH SUPPLEMENTAL INDENTURE, dated as of May 22, 2020 (this “Eighth Supplemental Indenture”), is among Lennox Switzerland GmbH, a limited liability company incorporated in Switzerland (the “Guarantor”), Lennox International Inc., a Delaware corporation (the “Company”), each other existing Guarantor under the Indenture referred to b

July 20, 2020 10-Q

Quarterly Report - 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D. C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2020 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 001-15149 LENNOX INTERNATIONAL

July 16, 2020 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits - 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (date of earliest event reported): July 10, 2020 LENNOX INTERNATIONAL INC. (Exact name of registrant as specified in its charter) Delaware 001-15149 42-0991521 (State or other jurisdiction of incorporation) (Commission

May 27, 2020 SD

- SD

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM SD SPECIALIZED DISCLOSURE REPORT LENNOX INTERNATIONAL INC. (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation) 001-15149 (Commission File Number) 42-0991521 (IRS Employer Identification No.) 2140 Lake Park Blvd. Richardson, Texas 75080 (Address of principal execut

May 27, 2020 8-K

Financial Statements and Exhibits, Submission of Matters to a Vote of Security Holders

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (date of earliest event reported): May 21, 2020 LENNOX INTERNATIONAL INC. (Exact name of registrant as specified in its charter) Delaware 001-15149 42-0991521 (State or other jurisdiction of incorporation) (Commission

May 27, 2020 EX-10.1

CONFLICT MINERALS REPORT Reporting Period from January 1, 2019 to December 31, 2019 LENNOX INTERNATIONAL INC.

Exhibit 1.01 CONFLICT MINERALS REPORT Reporting Period from January 1, 2019 to December 31, 2019 LENNOX INTERNATIONAL INC. This Conflict Minerals Report (this “Report”) of Lennox International Inc. (including its consolidated subsidiaries, the “Company”) has been prepared pursuant to Rule 13p-1 and Form SD promulgated under the Securities Exchange Act of 1934 for the reporting period from January

May 5, 2020 8-K

Financial Statements and Exhibits, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (date of earliest event reported): April 29, 2020 LENNOX INTERNATIONAL INC. (Exact name of registrant as specified in its charter) Delaware 001-15149 42-0991521 (State or other jurisdiction of incorporation) (Commissio

May 5, 2020 DEFA14A

- DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant ☒ Filed by a party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ☐ Defin

May 5, 2020 EX-99.1

Lennox International Announces that the 2020 Annual Meeting of Stockholders Will be Held in Virtual Format

Exhibit 99.1 PRESS RELEASE Lennox International Announces that the 2020 Annual Meeting of Stockholders Will be Held in Virtual Format DALLAS, April 29, 2020 – Lennox International Inc. (NYSE: LII) announced today that the 2020 Annual Meeting of Stockholders (the “Annual Meeting”) will be held in a virtual format due to the impact of the COVID-19 pandemic and to support the health and well-being of

April 20, 2020 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (date of earliest event reported): April 20, 2020 LENNOX INTERNATION

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (date of earliest event reported): April 20, 2020 LENNOX INTERNATIONAL INC. (Exact name of registrant as specified in its charter) Delaware 001-15149 42-0991521 (State or other jurisdiction of incorporation) (Commissio

April 20, 2020 EX-99.1

LENNOX INTERNATIONAL INC. AND SUBSIDIARIES Consolidated Statements of Operations (Amounts in millions, except per share data) For the Three Months Ended March 31, 2020 2019 Net sales $ 723.8 $ 790.3 Cost of goods sold 558.1 588.7 Gross profit 165.7 2

Exhibit-99.1 Lennox International Reports First Quarter Results and Updates Outlook •Impacted by adverse weather and the COVID-19 pandemic, the company reports first-quarter results and updates financial outlook for the year based on current market assumptions •First-quarter revenue on a GAAP basis down 8%; excluding the impact from prior-year divestitures, adjusted revenue down 4% •GAAP EPS from

April 20, 2020 10-Q

Quarterly Report - 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D. C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2020 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 001-15149 LENNOX INTERNATIONAL

April 9, 2020 DEFA14A

LII / Lennox International, Inc. DEFA14A - - DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant ý Filed by a party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ☐ Defin

April 9, 2020 DEF 14A

Schedule 14A

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant ý Filed by a party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as permitted by Rule 14

February 18, 2020 EX-4.7

Description of Securities (filed herewith).

Exhibit 4.[7] DESCRIPTION OF THE REGISTRANT’S SECURITIES REGISTERED PURSUANT TO SECTION 12 OF THE SECURITIES AND EXCHANGE ACT OF 1934 As of February 7, 2020, Lennox International Inc. has two classes of securities registered under Section 12 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”): (1) our Common Stock and (2) our 3.000% Notes due 2023. Description of Common Stock T

February 18, 2020 EX-21.1

Subsidiaries of LII (filed herewith).

EXHIBIT 21.1 Lennox International Inc. Subsidiaries The following are the subsidiaries of Lennox International Inc., as of February 7, 2020, and the states or jurisdictions in which they are organized. Subsidiaries are indented below their immediate parent entity. The names of certain subsidiaries have been omitted because, considered in the aggregate as a single subsidiary, they would not constit

February 18, 2020 EX-10.14

Amendment No. 9 to Amended and Restated Receivables Purchase Agreement, dated as of February 15, 2019, among LPAC Corp., as the Seller, Lennox Industries Inc., as the Master Servicer, Lennox International Inc., Victory Receivables Corporation, as a Purchaser, MUFG Bank, Ltd., formerly known as The Bank of Tokyo-Mitsubishi UFJ, Ltd., as administrative agent for the Investors, the purchaser agent for the MUFG Purchaser Group and a MUFG Liquidity Bank, Wells Fargo Bank, N.A., as the purchaser agent for the WFB Purchaser Group and a WFB Liquidity Bank, and PNC Bank, N.A., as the purchaser agent for the PNC Purchaser Group and a PNC Liquidity Bank, including attachments (filed herewith).

Exhibit 10.14 AMENDMENT NO. 9 TO AMENDED AND RESTATED RECEIVABLES PURCHASE AGREEMENT This AMENDMENT NO. 9, dated as of February 15, 2019 (this “Amendment”), is made with respect to that certain Amended and Restated Receivables Purchase Agreement, dated as of November 18, 2011 (as amended, restated, supplemented or otherwise modified, the “Agreement”), among LPAC CORP., a Delaware corporation ( the

February 18, 2020 10-K

Annual Report - 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-K ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2019 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 001-15149 LENNOX INTERNATIONAL INC.

February 18, 2020 EX-10.18

Form of Long-Term Incentive Award Agreement for U.S. Employees - Vice President and Above (for use under the 2019 Incentive Plan)

Exhibit 10.18 LENNOX INTERNATIONAL INC. Long-Term Incentive Award Agreement U.S. Employees – Vice President and Above THIS AGREEMENT (“Agreement”) is made as of , 20 (the “Date of Grant”), by and between Lennox International Inc., a Delaware corporation (the “Company”), and (“Participant”). The Company has adopted the Lennox International Inc. 2019 Equity and Incentive Compensation Plan (as amende

February 18, 2020 EX-10.19

Form of Restricted Stock Unit Award Agreement for Non-Employee Directors (for use under the 2019 Incentive Plan)

Exhibit 10.19 LENNOX INTERNATIONAL INC. Phantom Long-Term Incentive Award Agreement Non-U.S. Employees – Vice President THIS AGREEMENT (“Agreement”) is made as of , 20 (the “Date of Grant”), by and between Lennox International Inc., a Delaware corporation (the “Company”), and (“Participant”). The Company has adopted the Lennox International Inc. 2019 Equity and Incentive Compensation Plan (as amen

February 18, 2020 EX-10.20

(filed as Exhibit 10.20 to LII’s Annual Report on Form 10-K filed on February 18,2020 and incorporated herein by reference)

Exhibit 10.20 SHORT-TERM INCENTIVE PROGRAM FOR LENNOX INTERNATIONAL INC. AND ITS SUBSIDIARIES PLAN YEAR – 1. Purpose and Structure The purpose of the Short-Term Incentive Program (“STI Program”) is to provide competitive Performance Cash compensation under the Incentive Plan to those executives and other selected key employees who contribute significantly to the growth and success of the Company a

February 12, 2020 SC 13G/A

LII / Lennox International, Inc. / VANGUARD GROUP INC - SCHEDULE 13G/A Passive Investment

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 6)* Name of issuer: Lennox International Inc Title of Class of Securities: Common Stock CUSIP Number: 526107107 Date of Event Which Requires Filing of this Statement: December 31, 2019 Check the appropriate box to designate the rule pursuant to which this Schedule is fil

February 4, 2020 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (date of earliest event reported): February 4, 2020 LENNOX INTERNATIONAL INC. (Exact name of registrant as specified in its charter) Delaware 001-15149 42-0991521 (State or other jurisdiction of incorporation) (Commiss

February 4, 2020 EX-99.1

LENNOX INTERNATIONAL INC. AND SUBSIDIARIES Consolidated Statements of Operations (Amounts in millions, except per share data) For the Three Months Ended December 31 For the Years Ended December 31, (Unaudited) 2019 2018 2019 2018 Net sales $ 885.0 $

Exhibit-99.1 Lennox International Reports Fourth Quarter Results and Reiterates 2020 Guidance • Fourth-quarter revenue $885 million, up 5% on a GAAP basis and up 8% to a fourth-quarter record on an adjusted basis, excluding the impact from divestitures • Fourth-quarter GAAP EPS from continuing operations up 57% to fourth-quarter record $2.92; adjusted EPS from continuing operations up 24% to fourt

November 19, 2019 EX-10.1

Amendment No. 10 to Amended and Restated Receivables Purchase Agreement, dated as of November 13, 2019, among LPAC Corp., as the Seller, Lennox Industries Inc., as the Master Servicer, Lennox International Inc., Victory Receivables Corporation, as a Purchaser, MUFG Bank, Ltd., formerly known as The Bank of Tokyo-Mitsubishi UFJ, Ltd., as administrative agent for the Investors, the purchaser agent for the MUFG Purchaser Group and a MUFG Liquidity Bank, Wells Fargo Bank, N.A., as the purchaser agent for the WFB Purchaser Group and a WFB Liquidity Bank, and PNC Bank, N.A., as the purchaser agent for the PNC Purchaser Group and a PNC Liquidity Bank, including attachments (filed as Exhibit 10.1 to LII’s Current Report on Form 8-K filed on November 19, 2019, and incorporated herein by reference).

EX-10.1 Exhibit 10.1 EXECUTION VERSION AMENDMENT NO. 10 TO AMENDED AND RESTATED RECEIVABLES PURCHASE AGREEMENT This AMENDMENT NO. 10, dated as of November 13, 2019 (this “Amendment”), is made with respect to that certain Amended and Restated Receivables Purchase Agreement, dated as of November 18, 2011 (as amended, restated, supplemented or otherwise modified, the “Agreement”), among LPAC CORP., a

November 19, 2019 8-K

Entry into a Material Definitive Agreement, Financial Statements and Exhibits, Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (date of earliest event reported): November 13, 2019 LENNOX INTERNATIONAL INC. (Exact name of registrant as specified in its charter) Delaware 001-15149 42-0991521 (State or other jurisdiction of incorporation) (Commis

October 21, 2019 S-3ASR

LII / Lennox International, Inc. S-3ASR - - S-3ASR

S-3ASR Table of Contents As filed with the Securities and Exchange Commission on October 21, 2019 Registration No.

October 21, 2019 EX-25.1

Form T-1 Statement of Eligibility and Qualification under the Trust Indenture Act of 1939.

EX-25.1 Exhibit 25.1 SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM T-1 STATEMENT OF ELIGIBILITY UNDER THE TRUST INDENTURE ACT OF 1939 OF A CORPORATION DESIGNATED TO ACT AS TRUSTEE Check if an Application to Determine Eligibility of a Trustee Pursuant to Section 305(b)(2) U.S. BANK NATIONAL ASSOCIATION (Exact name of Trustee as specified in its charter) 31-0841368 I.R.S. Employer I

October 21, 2019 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (date of earliest event reported): October 21, 2019 LENNOX INTERNATIONAL INC. (Exact name of registrant as specified in its charter) Delaware 001-15149 42-0991521 (State or other jurisdiction of incorporation) (Commiss

October 21, 2019 EX-99.1

LENNOX INTERNATIONAL INC. AND SUBSIDIARIES Consolidated Statements of Operations (Unaudited) (Amounts in millions, except per share data) For the Three Months Ended September 30, For the Nine Months Ended September 30, 2019 2018 2019 2018 Net sales $

Exhibit-99.1 Lennox International Reports Third Quarter Results • Revenue on a GAAP basis up slightly, including 7% of negative impact from the tornado and divestitures • Excluding divestitures, adjusted revenue a third-quarter record $1.03 billion, up 6%, including 2% of negative tornado impact • GAAP EPS from continuing operations up 11% to third-quarter record $2.94 • Adjusted EPS from continui

October 21, 2019 10-Q

Quarterly Report - 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D. C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2019 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 001-15149 LENNOX INTERNATI

July 22, 2019 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (date of earliest event reported): July 22, 2019 LENNOX INTERNATIONAL INC. (Exact name of registrant as specified in its charter) Delaware 001-15149 42-0991521 (State or other jurisdiction of incorporation) (Commission

July 22, 2019 EX-99..1

LENNOX INTERNATIONAL INC. AND SUBSIDIARIES Consolidated Statements of Operations (Unaudited) (Amounts in millions, except per share data) For the Three Months Ended June 30, For the Six Months Ended June 30, 2019 2018 2019 2018 Net sales $ 1,099.1 $

Exhibit-99.1 Lennox International Reports Second Quarter Results • Revenue on a GAAP basis down 6%, including 8% of negative impact from the tornado, divestitures and foreign exchange • Excluding divestitures, adjusted revenue down 1%, including 3% of negative tornado impact and 1% of negative foreign exchange • GAAP EPS from continuing operations down 17% to $2.81, including a previously announce

July 22, 2019 10-Q

Quarterly Report - 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D. C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2019 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 001-15149 LENNOX INTERNATIONAL

July 15, 2019 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (date of earliest event reported): July 12, 2019 LENNOX INTERNATIONAL INC. (Exact name of registrant as specified in its charter) Delaware 001-15149 42-0991521 (State or other jurisdiction of incorporation) (Commission

May 24, 2019 EX-24.1

Power of Attorney

EX-24.1 Exhibit 24.1 POWER OF ATTORNEY KNOW ALL PERSONS BY THESE PRESENTS, that each of the undersigned officers and directors of Lennox International Inc., a Delaware corporation (the “Registrant”), hereby constitutes and appoints Todd M. Bluedorn, Daniel M. Sessa and John Torres, or any of them, each acting alone, as the true and lawful attorney-in-fact or agent, or attorneys-in-fact or agents,

May 24, 2019 S-8

LII / Lennox International, Inc. S-8 - - FORM S-8

Form S-8 As filed with the Securities and Exchange Commission on May 24, 2019 Registration No.

May 24, 2019 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits, Submission of Matters to a Vote of Security Holders

8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (date of earliest event reported): May 24, 2019 (May 23, 2019) LENNOX INTERNATIONAL INC. (Exact name of registrant as specified in its charter) Delaware 001-15149 42-0991521 (State or other jurisdiction of incorpor

May 24, 2019 EX-10.1

Lennox International Inc. 2019 Equity and Incentive Compensation Plan (filed as Exhibit 10.1 to LII’s Current Report on Form 8-K filed on May 24, 2019 and incorporated herein by reference).

EX-10.1 Exhibit 10.1 LENNOX INTERNATIONAL INC. 2019 EQUITY AND INCENTIVE COMPENSATION PLAN 1. Purpose. The purpose of this Plan is to permit award grants to non-employee Directors, officers and other employees of the Company and its Subsidiaries, and certain consultants to the Company and its Subsidiaries, and to provide to such persons incentives and rewards for service and/or performance. 2. Def

May 22, 2019 EX-1.01

CONFLICT MINERALS REPORT Reporting Period from January 1, 2018 to December 31, 2018 LENNOX INTERNATIONAL INC.

EX-1.01 Exhibit 1.01 CONFLICT MINERALS REPORT Reporting Period from January 1, 2018 to December 31, 2018 LENNOX INTERNATIONAL INC. This Conflict Minerals Report (this “Report”) of Lennox International Inc. (including its consolidated subsidiaries, the “Company”) has been prepared pursuant to Rule 13p-1 and Form SD promulgated under the Securities Exchange Act of 1934 for the reporting period from

May 22, 2019 SD

LII / Lennox International, Inc. SD - - FORM SD

Form SD UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM SD SPECIALIZED DISCLOSURE REPORT LENNOX INTERNATIONAL INC. (Exact name of registrant as specified in its charter) Delaware 001-15149 42-0991521 (State or other jurisdiction of incorporation) (Commission File Number) (IRS Employer Identification No.) 2140 Lake Park Blvd. Richardson, Texas 75080 (Address of principa

April 22, 2019 EX-99.1

LENNOX INTERNATIONAL INC. AND SUBSIDIARIES Consolidated Statements of Operations (Amounts in millions, except per share data) For the Three Months Ended March 31, (Unaudited) 2019 2018 Net sales $ 790.3 $ 834.8 Cost of goods sold 588.7 611.6 Gross pr

Exhibit-99.1 Lennox International Reports First Quarter Results • Residential revenue up 3% to new first-quarter high as recovery from tornado impact continues to accelerate • Residential revenue growth negatively impacted 8% from tornado • Overall company revenue on a GAAP basis down 5%, including 10% of negative impact from the tornado and divestitures; excluding divestitures, adjusted company r

April 22, 2019 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): April 22, 2019 LENNOX INTERNATIONAL INC. (Exact name of registrant as specified in its charter) Delaware 001-15149 42-0991521 (State or other jurisdiction of incorporation) (Commissio

April 22, 2019 10-Q

Quarterly Report - 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D. C. 20549 FORM 10-Q QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE QUARTERLY PERIOD ENDED March 31, 2019 Commission file number 001-15149 LENNOX INTERNATIONAL INC. Incorporated pursuant to the laws of the State of Delaware Internal Revenue Service Employer Identification No. 42-0991521 2

April 12, 2019 DEFA14A

LII / Lennox International, Inc. DEF 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant ☒ Filed by a party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ☐ Defin

April 12, 2019 DEF 14A

LII / Lennox International, Inc. DEF 14A

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant ☒ Filed by a party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as permitted by Rule 14

February 19, 2019 EX-10.24

Lennox International Inc. Supplemental Restoration Retirement Plan, effective as of January 1, 2019, dated December 28, 2018 (filed as Exhibit 10.24 to LII’s Annual Report on Form 10-K filed on February 19, 2019 and incorporated herein by reference).

EX-10.24 7 lii-ex102420181231x10k.htm EXHIBIT 10.24 Exhibit 10.24 LENNOX INTERNATIONAL INC. SUPPLEMENTAL RESTORATION RETIREMENT PLAN (Effective as of January 1, 2019) THIS SUPPLEMENTAL RESTORATION RETIREMENT PLAN (the “Plan”), made and executed in Richardson, Texas, by Lennox International Inc., a Delaware corporation (the “Company”), is hereby established for the purpose of providing unfunded ben

February 19, 2019 EX-10.23

Amendment Number One to the Lennox International Inc. Supplemental Retirement Plan, as amended and restated as of January 1, 2009, dated December 28, 2018 (filed as Exhibit 10.23 to LII’s Annual Report on Form 10-K filed on February 19, 2019 and incorporated herein by reference).

Exhibit 10.23 AMENDMENT NUMBER ONE TO THE LENNOX INTERNATIONAL INC. SUPPLEMENTAL RETIREMENT PLAN (As Amended and Restated as of January 1, 2009) WHEREAS, Lennox International Inc., a Delaware corporation (the “Company”) maintains the Lennox International Inc. Supplemental Retirement Plan (the “Plan”), which Plan was last amended and restated effective as of January 1, 2009; WHEREAS, the Company re

February 19, 2019 EX-4.5

Seventh Supplemental Indenture, dated as of January 23, 2019, among LII Mexico Holdings Ltd., Lennox International Inc., each other existing Guarantor under the Indenture, dated as of May 3, 2010, as subsequently supplemented, and US Bank National Association, as trustee (filed as Exhibit 2.5 to LII's Annual Report on Form 10-K filed on February 19, 2019 and incorporated herein by reference).

Exhibit 4.5 SEVENTH SUPPLEMENTAL INDENTURE This SEVENTH SUPPLEMENTAL INDENTURE, dated as of January 23, 2019 (this “Seventh Supplemental Indenture”), is among LII Mexico Holdings Ltd., a private limited company incorporated in England and Wales (the “Guarantor”), Lennox International Inc., a Delaware corporation (the “Company”), each other existing Guarantor under the Indenture referred to below (

February 19, 2019 EX-10.20

Short-Term Incentive Program for Lennox International Inc. and its Subsidiaries (filed herewith).

Exhibit 10.20 SHORT-TERM INCENTIVE PROGRAM FOR LENNOX INTERNATIONAL INC. AND ITS SUBSIDIARIES 1. Purpose and Structure The purpose of the Short-Term Incentive Program ("STI Program") is to provide competitive Performance Cash compensation under the Incentive Plan to those executives and other selected key employees who contribute significantly to the growth and success of the Company and to streng

February 19, 2019 EX-21.1

Subsidiaries of LII (filed herewith).

EXHIBIT 21.1 Lennox International Inc. Subsidiaries The following are the subsidiaries of Lennox International Inc. , as of February 1, 2019, and the states or jurisdictions in which they are organized. Subsidiaries are indented below their immediate parent entity. The names of certain subsidiaries have been omitted because, considered in the aggregate as a single subsidiary, they would not consti

February 19, 2019 EX-10.19

Form of Restricted Stock Unit Award Agreement for Non-Employee Directors (for use under the 2010 Incentive Plan) (filed herewith).

Exhibit 10.19 LENNOX INTERNATIONAL INC. Restricted Stock Unit Award Agreement Non-Employee Directors THIS AGREEMENT (“Agreement”) is made as of December 7, 2018 (the “Award Date”), by and between Lennox International Inc., a Delaware corporation (the “Company”), and (“Participant”). The Company has adopted the Lennox International Inc. 2010 Incentive Plan, as amended and restated (the “Plan”), the

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