
Geothermal Heat Pumps
An illustration of vertical loop geothermal heat pump. Geothermal heat is a central heating and cooling system that uses the earth as a heat source (in the winter) or a heat sink (in the summer).
Credit
Science Source
/ Gwen Shockey
Dimensions
3000 x 2400 pixels
Print Size @ 300 dpi
10 x 8 inches / 25 x 20 cm