Geothermal heating and cooling systems work because the earth below the frost line is a constant temperature of around 50 degrees year round. Using the principles of refrigeration, heat can be taken from the ground and transferred through a heat pump to the air in your home during the winter; the process is reversed in the summer to transfer the heat in your home to the ground for cooling.
 

Click on the GeoComfort logo below for more information on Geothermal heating and cooling for your home.