Make sure your contractor is going to get you the proper thermostat, you need one that will control a "Dual Fuel Heat Pump"
Contract states a honeywell 8320 w outsdoor sensor. I assume that will do the job.
It will. Ask about the price difference of upgrading to a Honeywell IAQ
A good HVAC tech knows how, an educated HVAC tech knows why!
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What will that gain me over the other? Just curious.
Better control of switch over from heat pump to furnace.
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How many times must one fix something before it is fixed?