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Heat pumps twice as efficient as fossil fuel systems in cold weather, study finds
(www.theguardian.com)
this post was submitted on 12 Sep 2023
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Technology
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I live in Finland. Heat pump is the only source of heat in my house.
It can go down to -30C (-22f) sometimes or even below that
Are you intimately familiar with the inner workings of your heatpump? Nearly all heatpumps in a cold climate have backup heat built in and it would automatically switch to backup when it gets too cold outside. -30C is well into the too cold category for it to function as a heatpump alone
Yeah I have no idea. The alternative would be electric radiators anyways so in most cases that wouldn't make a difference anyways. Temperatures that low are quite rare - maybe just a handful of nights a year. Generally it stays around -10C
Which makes the argument that heat pumps don't work in the cold completely wrong from a user perspective.