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In the Winter

Remember, a geothermal heat pump doesn't create heat by burning fuel, like a furnace does. Instead, in winter it collects the Earth's natural heat through a series of pipes, called a loop, installed below the surface of the ground or submersed in a pond or lake. Fluid circulates through the loop and carries the heat to the house. There, an electrically driven compressor and a heat exchanger concentrate the Earth's energy and release it inside the home at a higher temperature. Ductwork distributes the heat to different rooms. In summer, the process is reversed.

In the Summer

The underground loop draws excess heat from the house and allows it to be absorbed by the Earth. The system cools your home in the same way that a refrigerator keeps your food cool - by drawing heat from the interior, not by blowing in cold air. The geothermal loop that is buried underground is typically made of high-density polyethylene, a tough plastic that is extraordinarily durable but which allows heat to pass through efficiently. When installers connect sections of pipe, they heat fuse the joints, making the connections stronger than the pipe itself. The fluid in the loop is water or an environmentally safe antifreeze solution that circulates through the pipes in a closed system.

When a well, pond or lake are not used

Another type of geothermal system uses a loop of high-density polyethylene piping placed underground. When the refrigerant is pumped through the loop, heat is transferred directly through the piping to the earth. High-density polyethylene is a tough plastic that is extraordinarily durable and allows heat to pass through efficiently. When installers connect sections of pipe, they heat fuse the joints, making the connections stronger than the pipe itself. The fluid in the loop is water or an environmentally safe antifreeze solution that circulates through the pipes in a closed system.

Efficiency comparison to standard heat pumps

Egg Geothermal heating and Cooling uses the Earth's constant temperature to achieve EER's (Energy Efficiency Ratings) well into in the 30's.  Most existing  systems in operation  today run  at a measly 13 SEER or lower. If saving money and going green is your goal geothermal systems can’t be beat... Nothing even comes close!

The heating COP (Coefficient of Performance) is approaching 5.  A 5 COP indicates that the Egg Geothermal Systems are producing 5 units of energy for every unit of electricity consumed.  The other 4 come from the Earth.  That's why this technology is called "renewable".