I’ll note that this post is paywalled, but the key facts are outside the paywall.

  • mo_ztt ✅@lemmy.world
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    1 year ago

    Yes, over 100% efficiency is exactly what I claimed. In winter, you’ll get more BTUs of heat output from a heat pump than you had put in as BTUs of electricity input – because instead of converting the electricity to heat, it’s using the electricity to pull heat from the outside and put it in your house. Hence, it’s a more energy-efficient way to do things than the laws of physics would allow for a device that directly converted electricity to heat. That’s what it means to be a reversible air conditioner, yes.

    IDK why me saying that is some kind of controversial statement – it’s simply a factual description of the product. There are scenarios and real-world constraints which may mean it’s more or less sensible to install one, but over 100% efficiency is, exactly, the selling point of a heat pump.