3 ms·

Modern heat pumps can be under 55dB. I've had PCs louder than this.

• akvadrako 5y ago
  55db is not quiet -- that would be the loudest thing in my house. But shouldn't these things be in a basement or utility room?
  • pornel 5y ago
    It is comparable to a refrigerator or dishwasher running. The pumps have to be outside the house. I can't hear mine though a double-glazed window.
    • Siecje 5y ago
      Or a microwave.
    • akvadrako 5y ago
      Good fridges are about 35db when running.
  • Siecje 5y ago
    The loud part of an air source heat pump is outside.