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Yes. They’re saying that gas fired furnaces and water heaters must be replaced with something not gas fired - likely heat pumps.

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I wonder if you can make a heat pump water heater that can plug into a regular 20amp circuit as a simple retrofit. Performance will be poor/slow but landlords don’t care

The tankless are already at that I think

Tankless on electric needs like a 100 amp circuit

Air to water heatpumps exist for this purpose.

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

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...

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