• Ильдар
    link
    fedilink
    English
    11 year ago

    it’s just physics, and at sub-zero temperatures the air heat pump simply switches to electricity it’s another matter if your pump uses the ground or a well, then of course it will work at any outside temperature

    • FiveMacs
      link
      fedilink
      English
      01 year ago

      I Should have been more specific about air source…but yes