• Wahots
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    8 hours ago

    We had great heat pumps in Montana already. And if it gets insanely (-38f) cold, there’s a resistive fallback mode. But I’d wager most places aren’t gonna get to 38 below.

    • chunkystyles@sopuli.xyz
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      2 hours ago

      I’m in PA and it doesn’t get nearly as cold here, of course. We got mini splits in 2022 that can do -33f, I think. No resistive backup for us.

      Mini splits are so, so nice.

    • ColeSloth@discuss.tchncs.de
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      2 hours ago

      Heat pumps don’t work well (even the new ones coming from this article are only good to 15f) anywhere near that cold. Most are only good to about 25f. Anywhere they’re installed that drops below freezing all have a backup heat system, whether or not it’s a gas backup, or resistive electric backup.

      Some large commercial heat pumps will got down to like 0 degrees F, but none of the residential ones do.

      • hypna@lemmy.world
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        56 minutes ago

        I am looking out my window at a heat pump in my back yard which is effective down to -15F. Your info is I think about 10 years out of date.

      • Cort@lemmy.world
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        1 hour ago

        I think you’re forgetting ground source heat pumps. They’ll work fine at -40 because they don’t rely on air temperature.