What is Geothermal?


8-10 feet below the ground you’re standing on, the earth stays at a constant temperature.

Geothermal systems move heat to and from that zone of constant temperature. In winter, heat is taken from the ground to heat our house and in the summer, heat is transferred back into the ground from our house, thereby cooling the temperature in our house.

This is an extremely efficient process. For every 1 unit of heat transferred through the heat pump you get a return of 3 – 4 units back. That’s a ‘Coefficient of Performance’ or COP of 3.0 -4.0; efficiencies of 300-400%.

see also:
www.geoexchangebc.com
www.bcgwa.org