[fc417fc802]

For "human" temperatures don't they just degrade back to the efficiency of resistive heating? Or are some places actually cold enough to push the factor below 1?

[magicalhippo]

> Or are some places actually cold enough to push the factor below 1?

Probably some far north, but not that many. My Kaiteki 6600 has[1] a SCOP of 5.1 and a factory guaranteed COP at -25C (-13F) of 3.1.

[1]: https://mee.no/privat/produktkategori/luft-luft-varmepumper/...