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Re:Electric heat to cost 77 percent more than natural gas, f... by throw0101b on Tuesday November 14, 2023 @12:34PM (#38266534)
Mitsubishis can work down to -13F/-25C and have a COP of 2.08:

* https://mylinkdrive.com/viewPdf?srcUrl=http://enter.mehvac.c...

If you live in US IECC Climate Zone 4 or above look for a cold climate air-source heat pump (ccASHP):

* https://neep.org/heating-electrification/ccashp-specificatio...

* https://ashp.neep.org/#!/

You can also get things installed in a dual fuel arrangement where you still have a gas furnace that kicks in if it does ever get 'too cold'.

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