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Heat pumps are useless in hard frost. The one I own stops being useful at 3 degrees of frost, struggles before then
by worik 5y ago
Heat pumps are useless in hard frost.
The one I own stops being useful at 3 degrees of frost, struggles before then
- CWuestefeld 5y agoAs I wrote above, the only time I've seen mine falter was at 6F (last year's mega freeze in Austin). It occasionally gets to 13F-15F in the winter, and the heat pump works in this environment without having to resort to "aux heat". I'm sure it's become rather inefficient, but it does work.