For "human" temperatures don't they just degrade back to the efficiency of resis... | Hacker News

Hacker Newsnew | past | comments | ask | show | jobs | submit

		fc417fc802 29 days ago \| parent \| context \| favorite \| on: Slovenia becomes first EU country to introduce fue... 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 29 days ago [–]

> 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/...

Consider applying for YC's Summer 2026 batch! Applications are open till May 4
Guidelines | FAQ | Lists | API | Security | Legal | Apply to YC | Contact