Think most people know this is the case. We use heat on pumps. It's not particularly cold but -1.
this post was submitted on 01 Nov 2023
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I have a heat pump and a gas furnace. The furnace is only used if the heat pump isn't able to heat and that's typically around -25c. This keeps me off gas most of the winter.
Science proves otherwise...in cold enough temps the heat pump is literally useless and you will need a backup source like electric dor gas/bio fuel.
Sitting up here in the Alps, winter approaching, laughing at your two-decades-out-of-date ignorance 😂
I live in NC where a very cold day is +20F and I have to say I do not feel my heat pump keeps my house very warm. Maybe l just have a very high expectation of what a warm house feels like, but based purely on comfort I would not pick a heat pump. My house is only about 7 years old, so maybe the technology has improved since then?
Nothing to do with the heat pump, everything to do with building standards over to last couple of decades
Is your house insulated? Do you have modern windows?
I will say, it is unseasonably cold the last few days (40's) and my house is comfortably warm. But I cannot imagine going days sub freezing and the heat pump keeping up. But I am a spoiled American.
Are you saying it struggles to meet the temp set on the thermostat, or that you/your spouse sets the thermostat too low?
I am saying the heat pump struggles to keep up with the temp on the thermostat. It runs constantly and cannot maintain the ~70 we have the thermostat set too.
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Saving power for even a few extra months still saves money. You can have both a heat pump and a normal gas furnace. They aren't even that expensive. If you have a high heating bill, it could pay itself off in a few years.
it’s just physics, and at sub-zero temperatures the air heat pump simply switches to electricity it’s another matter if your pump uses the ground or a well, then of course it will work at any outside temperature
Physics isn't wrong. Ground source is better, but air source won't keep up with multiple days of sub temps