Geothermal's energy source is the very earth beneath our feet. Because the earth absorbs 50 percent of the sun's energy -- more than 500 times more energy than mankind needs every year -- there is an abundant power source in the earth to tap for heating and cooling. Geothermal systems transfer this heat from a home during the cooling season and return it to the earth during the heating season. Geothermal is possible because the temperature of the earth at 4 to 6 feet below ground remains relatively constant year-round.
How geothermal systems work:
A geothermal system is accomplished through the installation of what's called a "heat exchange loop" in the ground, either directly beneath a house or in the homeowner's yard. If a well or pond is available, the loop can be installed in the water and connected to the house in the same manner. This in-ground or water-source loop is connected to one or more heat pumps inside the house.In the winter, the fluid circulating through the earth loop or water source absorbs stored heat from the ground and carries it indoors. The geothermal heat pumps compress the heat to a higher temperature and distribute it throughout the home. In the summer, the process reverses and the cooler earth absorbs the heat from the home, returning cooler fluid to the heat pump. This is typically cooler than the outside temperatures, providing a reduced load for air conditioning the home.
Please contact us for more information about Geothermal services.
Information about Geothermal systems from PennWell Corporation.