Question for the experts here....If you have a heat pump with electric heat back up and you set the thermostat to 1 heat/1 cool (instead of 2 heat/1 cool) will the Aux electric heat still come on when the heat pump is in defrost mode?
source https://hvac-talk.com/vbb/threads/2227018-Aux-Heat-Quick-Question!?goto=newpost
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