LEWISBURG, Tenn. — With the introduction of the N4H6 Performance 16 heat pump and N4A7 Performance 17 air conditioner, Tempstar is continually improving on its two-stage heating and cooling product ...
For the smart thermostat I have (an ecobee3), the answer is no. It does support two stage heating and cooling systems, but only a single zone. I think the Nest is the same. I have cheap Honeywell's, ...
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