• Anna@lemmy.ml
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    20 hours ago

    What about heat pumps they have efficiency in the range of 200-300%

    • stom@lemmy.world
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      10 hours ago

      Heat pumps move heat around, whereas radiators create it.

      The “efficiency” of heatpumps relates to heat they import into a system for a given amount of power, compared to creating heat with that power. They are not generating that heat. They are moving it.

      Similarly, it’s much more energy efficient to use a wheelbarrow to collect ice and move it inside, than it is to make ice cubes in freezer.