How It Works

Geothermal Heat Pumps use the nearly constant temperature underground to heat or cool a building's interior




  1) Ground loops filled with fluid absorb heat in the winter (and release it in the summer.) 2) The evaporator transfers heat from the ground loops to refrigerant fluid circulating in the system. 3) The compressor increases the pressure on the fluid to raise its temperature. 4) The DESUPERHEATER takes some of the excess heat and routes it to the hot water heater. 5) A reversing valve lets the heat pump switch directions to either heat or cool the building. 6) The expansion valve lowers the fluid's pressure and temperature so it flows toward the evaporator, and the cycle starts again.





























































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Copyright 2011 by Geothermal Specialist, Inc.
Last Updated: February, 2011