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Can a Geothermal System Really Cool My Home as Well as My Air Conditioner Does Now?

Learn why a geothermal heat pump is a good source of green energy for your home.

Geothermal Home Diagram

Geothermal heating and cooling is one of the top ways homeowners can reduce their utility bills as well as their environmental impact through the use of green energy. While for many years geothermal was considered primarily an option for new construction, as the housing market has changed and technology has improved, geothermal HVAC has become a viable option for existing homes.

A geothermal heating and cooling system is also known as a ground-source heat pump. Instead of the more common air-source heat pump, a geothermal system relies on the stable, consistent heat of the earth to provide heating, air conditioning and, in most cases, hot water.

A system of tubes buried horizontally or vertically in the ground contains a water/anti-freeze mixture that circulates through the ground and the heat pump. The antifreeze mixture carries heat to or from the home as needed. In some cases an open-loop system using a ground-water source may be possible depending on water quality and quantity.

Manufacturers offer geothermal products for retrofit situations with a minimum of alterations. In a home with an existing forced-air system powered by propane, heating oil or natural gas, a geothermal system can use existing ductwork and mechanical spaces.

If the existing furnace or boiler in a home is 20 years old or more, it may make sense to replace it with a geothermal system. Geothermal systems are 400 percent to 500 percent efficient, so the operational costs will be significantly reduced.

For more information on geothermal heat pumps and green energy, click this link to contact an experienced HVAC professional at Morelli Heating and Air Conditioning.

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