• Dettweiler
    link
    English
    42 years ago

    That’s what I was thinking. Expansion/absorption happens in the air handler in the house, while compression/radiation happens outside.

    For heating, it usually just turns on an electric coil in the air handler.

    • @[email protected]
      link
      fedilink
      English
      72 years ago

      They work in reverse too. A heat pump can heat more efficiently than a resistance heater.