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Features Guide

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Heating Stages
Some furnaces have two stages of heat, similar to a reading lamp that has a lower setting and a brighter setting. Others have modular stages of heat, similar to a dimmer lightswitch that has more flexibility.
ComfortLink™ II XL1050
Cooling: 2 Stages
Heating: 5 Stages
Programmable: 7 Days
ComfortLink™ II XL850
Cooling: 2 Stages
Heating: 5 Stages
Programmable: 7 Days
XL824
Cooling: 2 Stages
Heating: 5 Stages
Programmable: 7 Days
XL624
Cooling: 2 Stages
Heating: 4 Stages
Programmable: 7 Days

Features Guide

-
Heating Stages
Some furnaces have two stages of heat, similar to a reading lamp that has a lower setting and a brighter setting. Others have modular stages of heat, similar to a dimmer lightswitch that has more flexibility.

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