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Heat pumps can't take the cold? Nordics debunk the myth
(techxplore.com)
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this post was submitted on 01 Nov 2023
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How is this a myth? Nobody with more than two braincells thinks that heat pump heaters don't work in the cold.
If we start comparing everything that idiots think to a mythological mystery worthy of note, we'll be here for an eternity.
It's not that people think they don't work in the cold, it's that they are less suited for the areas or days of extreme cold.
Which is why you have a backup system. I have a net zero house in Saskatchewan, Canada. My Carrier heat pump will operate to -15C, and switches to electric heating coils in the air handler if it's colder outside. It's a rather extreme climate here, but in most other places, you'd be fine with some baseboard heaters as backup.