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Item 16. Form 10-K Summary

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Item 16. Form 10-K Summary

None.

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

LENNOX INTERNATIONAL INC.

By: /s/ Alok Maskara

Alok Maskara

Chief Executive Officer

February 17, 2026

Pursuant to the requirements of the Securities Exchange Act of 1934, this report has been signed below by the following persons on behalf of the registrant in the capacities and on the dates indicated.

SIGNATURETITLEDATE
/s/ Alok MaskaraChief Executive Officer and DirectorFebruary 17, 2026
Alok Maskara(Principal Executive Officer)
/s/ Michael P. QuenzerExecutive Vice President and Chief Financial OfficerFebruary 17, 2026
Michael P. Quenzer(Principal Financial Officer)
/s/ Chris A. KoselVice President, Controller and Chief Accounting OfficerFebruary 17, 2026
Chris A. Kosel(Principal Accounting Officer)
/s/ Todd J. TeskeChairman of the Board of DirectorsFebruary 17, 2026
Todd J. Teske
/s/ Sherry L. BuckDirectorFebruary 17, 2026
Sherry L. Buck
/s/ Tracy A. EmbreeDirectorFebruary 17, 2026
Tracy A. Embree
/s/ John W. Norris, IIIDirectorFebruary 17, 2026
John W. Norris, III
/s/ Karen H. QuintosDirectorFebruary 17, 2026
Karen H. Quintos
/s/ Sivasankaran SomasundaramDirectorFebruary 17, 2026
Sivasankaran Somasundaram
/s/ Jon Vander ArkDirectorFebruary 17, 2026
Jon Vander Ark
/s/ Shane D. WallDirectorFebruary 17, 2026
Shane D. Wall

LENNOX INTERNATIONAL INC.

SCHEDULE II - VALUATION AND QUALIFYING ACCOUNTS AND RESERVES

For the Years Ended December 31, 2025, 2024 and 2023

(In millions)

Balance at beginning of yearAdditions charged to cost and expensesWrite-offsRecoveriesOther**(1)**Balance at end of year
2023
Allowance for doubtful accounts$15.5$9.8$(0.2)$—$(10.7)$14.4
2024
Allowance for doubtful accounts$14.4$8.0$(0.6)$—$(4.0)$17.8
2025
Allowance for doubtful accounts$17.8$1.2$(8.5)$—$(2.0)$8.5
(1) 2023 consists of the sale of our European businesses and other miscellaneous items.

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