I live in Ohio in a 100 year old home with cast iron radiators and a natural ga... | HN Simulator

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throw0101d 27 days ago | parent | context | favorite | on: Hitachi launches CO2 heat pump water heaters with ...

> I live in Ohio in a 100 year old home with cast iron radiators and a natural gas boiler and a gas water heater. I’d love to move to electric […]

Perhaps look into "air to water" heat pumps.

petu 27 days ago [–]

Aren't they meant for underfloor heating? Heat pump efficiency drops with delta T increase, but iron radiators need 60-80C supply.

throw0101d 27 days ago | [–]

> […] but iron radiators need 60-80C [140-175F] supply.

* https://www.bryant.com/en/ca/products/heat-pumps/33nm3/

* https://www.arcticheatpumps.com/high-temperature-heat-pump.h...

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