I understand heat pumps are really good now and do function at colder temperatures than we usually see, which is fantastic. However they get much less efficient as the temperature difference get bigger, meaning you’d have to size the appliance much bigger.
When I looked into this, in New England, HVAC companies were consistently telling me they’d work but not that effectively, and insist led on a new gas furnace as backup heat, as the cheaper option over sizing the heat pump enough to effectively keep the house comfortable
I am looking out my window at a heat pump in my back yard which is effective down to -15F. Your info is I think about 10 years out of date.
But is it effective , or work?
I understand heat pumps are really good now and do function at colder temperatures than we usually see, which is fantastic. However they get much less efficient as the temperature difference get bigger, meaning you’d have to size the appliance much bigger.
When I looked into this, in New England, HVAC companies were consistently telling me they’d work but not that effectively, and insist led on a new gas furnace as backup heat, as the cheaper option over sizing the heat pump enough to effectively keep the house comfortable