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by grawprog 1363 days ago
Air to water heatpumps exist for this purpose.

https://www.hpacmag.com/features/heat-pump-interest-growing-...

1 comments

You don’t need anything that complicated I’m thinking something like this. It already exists btw

https://cleantechnica.com/2021/11/29/120-volt-heat-pump-wate...