The Not So Magical Geothermal Heat Pump

Every modern day house has a heat pump, whether they realize it or not.  In fact Americans use this item every day, it is the refrigerator.  Stand barefoot in front of your refrigerator, you will notice warmth on your toes, but when you open the refrigerator the inside is quite cold.  A geothermal heat pump works on the same principle.  In fact it also shares many of the same components; the compressor, the condenser, the evaporator, and the expansion valve.