this post was submitted on 27 Oct 2024
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Heat pumps don't work well (even the new ones coming from this article are only good to 15f) anywhere near that cold. Most are only good to about 25f. Anywhere they're installed that drops below freezing all have a backup heat system, whether or not it's a gas backup, or resistive electric backup.
Some large commercial heat pumps will got down to like 0 degrees F, but none of the residential ones do.
They're literally all over the Alps and you've been lied to
Oh yeah? Link me one single residential heat pump from anywhere that works sub 0F.
Here
Their technical documents show that they are down to about 20% of their usual heat output at that lowest temperature so they need to be sized up accordingly. The reality for most folks in an area cold enough to require these is they have backup heat sources for the coldest days anyways.