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View Full Version : Can I use a th4210d honeywill on a gas furnace with heat pump?

bncope58
Feb 5, 2014, 09:41 PM
Will th4210d Honeywell thermostat work on my Amana gas furnace with a Amana heat pump?
Grady White
Feb 7, 2014, 08:17 PM
It should if the furnace/heat pump is equipped with a fossil fuel kit.