Comments by "Luredreier" (@Luredreier) on "Major Advances with Heat Pumps in the Extreme Cold" video.

  1. 5:07 That -5⁰ number depends on the fluid used. You can design heat pumps with different optimal operating temperatures. The downside is that if they work better in the cold they might not work as well in the heat etc... You want them to be able to achieve both a liquid and gas state in the temperatures you got available to you. 8:33 Exactly! Most heatpumps on the Norwegian market currently works best at -35⁰C (-31⁰F) and up. Below -35⁰C the ones in our market starts to struggle (After all colder then -35 is rare in Norway, although it definitely does happen)
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  2. ​​ @WhatTheHellIsWrongWithYouu anasonic and Mitsubishi seems to have the best heatpumps in our market here in Norway. They both have models that works great down to -35⁰C. Below that they'll start to struggle, so a secondary heat source like a wood oven is important.
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  3. ​​ @Chris_at_Home here's some made by Panasonic and Mitsubishi that's good down to -35⁰C. If you hit say -40⁰C you'll need a secondary heat source to take over. But that heat pump can do the job most of the winter and save you a lot of money on the electricity bill.
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