Quote:
Originally Posted by masterdrago
On our 3791RD I've noticed that both thermostats have a heat pump setting. Where we are currently and in our driveway at home, the outside temps are too cold and the humidity is too high to get much from a heat pump. For the best from a heat pump, the air should be dry and not colder than ~45F.
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My 1 HP worked great this morning @ 34F outside.