• 9point6@lemmy.world
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    8 months ago

    Mini split heat pumps.

    All you need is a 3cm hole in the wall to run a refrigerant line from the outside heat pump unit to the wall unit.

    Window AC units are pretty poor efficiency too, IIRC

      • realitista@lemmy.world
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        8 months ago

        There are the freestanding air conditioners. They have a hose you put in the window. There are plastic seals you can buy that fit in the windows to seal off the exhaust. They aren’t perfect but they are better than nothing.