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Cake day: July 2nd, 2023

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  • stom@lemmy.worldtoScience Memes@mander.xyzHeat
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    4 days 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.