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A comment on You and the planet need a heat pump. Parent comment

Re:You and the planet need a heat pump by sokoloff on Sunday March 20, 2022 @06:21PM (#30747308)
Heat pumps in heating mode lose efficiency on a continuous (with lowering temperature) basis; the colder it is outside and/or the hotter output (air or water) you want to get from the unit, the lower efficiency they have.

https://www.researchgate.net/figure/e-efficiency-of-an-Air-S...

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Re:You and the planet need a heat pump by teruakohatu on Sunday March 20, 2022 @06:44PM (#30747526)
That is true, but the curves have improved dramatically since 2006 (when that graph you linked to was posted). At 0C they are still much more efficient than electric.
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Re:You and the planet need a heat pump by lsaferite on Monday March 21, 2022 @05:56PM (#30760241)
> At 0C they are still much more efficient than electric.

Are you referring to resistive heating?

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