• arin@lemmy.worldEnglish
    112·
    2 个月前

    They’re noisy because they are inefficient. But still more efficient than any ceiling fan

    • Bezier@suppo.fiEnglish
      101·
      2 个月前

      They’re noisy because they are inefficient.

      It’s probably both noisy and inefficient if it’s made really cheap, but is that causation true?

      But still more efficient than any ceiling fan

      Not really comparable since ACs change the air temperature, while fans just move air.

      • JcbAzPx@lemmy.worldEnglish
        4·
        2 个月前

        The real reason they are noisy is the only thing between you and the compressor is a sheet of metal.

    • BastingChemina@slrpnk.netEnglish
      23·
      2 个月前

      I don’t know how you measure efficiency but if you measure the amount of energy required for each degree of apparent temperature dropped then a fan is way way more efficient.