• 0 Posts
  • 21 Comments
Joined 1 year ago
cake
Cake day: June 11th, 2023

help-circle



















  • Define cold.

    I have an air-water heat pump as the only source of heat and hot water in my house. It takes heat from the air outside and dumps it into a 200 litre water tank. I’d guesstimate that 80% of the homes in my neighborhood have the same setup.

    Temperatures are going to be around -10°C for the next few days. When the silver falls below -15°C a resistive element kicks in to help the pump. In my climate I won’t see more than a handful of those per year.

    Nordic models scale down to -30°C before doing the same.