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Stock-Based Compensation
 9 Months Ended
Sep. 30, 2025
Share-Based Payment Arrangement [Abstract]  
Stock-Based Compensation
Stock-Based Compensation:

We issue various long-term incentive awards, including performance share units, restricted stock units and stock appreciation rights under the Lennox International Inc. 2019 Equity and Incentive Plan, as it may be amended and restated from time to time. Stock-based compensation expense related to continuing operations is included in Selling, general and administrative expenses in the accompanying Consolidated Statements of Operations as follows (in millions):
For the Three Months Ended September 30,For the Nine Months Ended September 30,
2025202420252024
Stock-based compensation expense
$6.3 $6.8 $20.8 $20.1