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		jhallenworld on Sept 24, 2022 \| parent \| context \| favorite \| on: Homemade Heat Pump Manifesto (2009) The US Senate just approved an HFC ban. So which refrigerant should be used in the heat pumps? Can we get HFC-free heat pumps today? See https://www.danby.com/blog/danbys-commitment-to-remain-100-h... http://hvacrfundamentals.blogspot.com/2019/06/appliances-wit... Looks like r600a, iso-butane is already in use.

wongarsu on Sept 24, 2022 | [–]

I would assume any refrigerant in use in air conditioning works just fine, based on heat pumps being air conditioners ruining in reverse

AvocadoPanic on Sept 24, 2022 | [–]

r744

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