How does closed loop geoexchange work ?
• ANSWER: At 6 ft – 8 ft beneath the surface, the earth’s temperature remains fairly constant at around 53° or so in the Pacific Northwest. Geoexchange takes advantage of this constant temperature to provide extremely efficient heating and cooling for your home or business. • In the winter, a water and glycol solution circulating through pipes buried in the ground absorbs heat from the earth and carries it into the home. The geoexchange unit inside the home uses a heat pump to concentrate the earth’s thermal energy and then transfers it as forced heat through standard ductwork or hydronically through radiant floors. • In the summer, the process is reversed: heat is extracted from the air in the house and transferred through the heat pump to the ground loop piping. The water and glycol solution in the ground loop then carries the excess heat back to the earth. Geoexchange uses only a small amount of electricity to operate the ground loop pump and fan. Thus there is no combustion going o
