Heat Pumps

From Open Source Ecology
Jump to: navigation, search

Sourcing

  • 18kBTU $843 [1] - but not the lowest temperature version

Specs

  • They can go up to 180C output, using water as the refrigerant. [2]
  • COP is 3-4 in geothermal, but air heat pump drops down from 5 to 1 in low temps. [3]