Debbie Goldsmith 🏳️⚧️♾️🇺🇦RE: https://mastodon.social/@CelloMomOnCars/116250404645592330
This! There is as much disinformation about heat pumps as there is about EVs!
AaronI live in Minnesota and have a heat pump for our A/C and some of our heating. Newer ones can function in temperatures as low as -15°F. They do not function well enough to be the sole heating source in temperatures anywhere near that low. That's all people need to understand. In all those statistics about people on Norway or Sweden having them, that is not the only heat source. Depending on if one cares about cost effectiveness or emissions, and on energy prices and sources, they are generally recommended for providing heat down to about freezing. If it gets much colder than that with any frequency people need another heat source.
John Schrag@FWAaron I think your information might be out of date. I live in an area where it regularly goes below -20C in February, and my air-source cold climate heat pump has no trouble at all keeping my house toasty warm. I do have an alternative heat source, but I’ve never had to turn it on. The technology has really been improving over the last decade.
They are getting better and better. I have not heard of anyone using solely a heat pump for temperatures quite that cold but I suppose if you get one powerful enough compared to the size of your home than mine it will work. I do know where I live absolutely no contractor would install one as a sole heat source because in an average winter it does get around or past the absolute threshold of when a heat pump will work a few days. So my system was not planned as the sole heat source, so when it does get as cold as you mention, it will run but can't keep the house particularly warm. Also at those temps the cost or emissions efficiency comes into play if one cares about that.
AlsoPaisleyCat 🇨🇦They are good up to -25 C which is good enough for most of us.
C.S.Strowbridge@AlsoPaisleyCat @FWAaron @dgoldsmith
I was about to talk about the same study.