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this post was submitted on 27 Oct 2024
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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.
Literally any decent heat pump has a COP > 1.0 down to around -20F.
Sorry I don't speak medieval, could you translate the temperature from 16th to 21st century?