By installing a heat pump in his house in the hills of Oslo, Oyvind Solstad killed three birds with one stone, improving his comfort, finances and climate footprint.

Heat pumps can’t take the cold? Nordics debunk the myth::By installing a heat pump in his house in the hills of Oslo, Oyvind Solstad killed three birds with one stone, improving his comfort, finances and climate footprint.

  • Pretzilla@lemmy.worldEnglish
    3·
    1 year ago

    I want to understand what happens when it’s too cold out. And just running in pure air sourced HP mode, without supplemental heat.

    Does it keep running at 100% but produces no heat? Limited heat? Does the house get colder and colder until everyone turns into a popsicle?

    Or does it only heat the house to 18c instead of 20c?

    In a climate where the low is -10c, how well does it work?

    • vpklotar@lemmy.worldEnglish
      2·
      1 year ago

      I can only talk for myself but I have a Nibe pump here in Sweden with air source outside pump and water heating system to radiators on the inside. Even down to -30° with really shitty windows it was enough heat for me to be comfortable. Though it did indeed use the supplementary resistive heating a bit it was still able to give me about a 200% efficiency during that period. Give a typical winter (usually around -5-10C but, as said can go down to -20C or -30C for a week or so) it still runs an average of about 300-400% efficiency.

    • space@lemmy.dbzer0.comEnglish
      1·
      1 year ago

      You either buy some portable electric heaters for those 2-3 weeks when it’s necessary, or you get a heat pump that has resistive heating as a backup.