A Geothermal design to heat and cool uses the natural constant ambient temperature of the earth to heat in the winter and cool in the summer. The Geothermal system, combined with a unique ground, lake, pond loop as the heat sink and a water source heat pump or compressor as the liquid heat exchanger medium, then a forced-air or hydronic system to complete the ventilation system. Geothermal technology, earths natural thermal energy, is a renewable resource to heating and cooling a home or commercial building.

How Geothermal Works

Geothermal heating and cooling is cost effective because it uses energy so efficiently. Outdoor temperatures fluctuate and change with the seasons, but the underground temperatures remain virtually the same.  Depending on your geographic location , four to six feet below the earth’s surface the temperatures remain around 56 degrees.  Geothermal systems, which typically consist of an indoor unit and a buried earth loop, use the earth’s basically constant temperature to provide “free” energy. 

Geothermal systems in the winter, in heating, takes the  heat from the earth, transfers that heat to a exchange medium , then distributes the heat into the home or business with a forced-air or hydronic system.

Geothermal systems in the summer, in cooling, geothermal systems pulls heat from the home or business and transfers the heat to the exchange medium, which then transfers the heat back to the ground loop.

The ground loop is a key part of the geothermal system and it must be properly designed and installed. The plans to the loop ground field are easy to understand but applying the technology to the design is quite complicated. Careful design is necessary to ensure that there is sufficient capacity available for the geothermal heat pump to operate properly. Design consideration is crucial when spacing the pipes in a loop and is important as this affects how much the heating or cooling effect of one pipe influences the heat source or heat sink available to adjacent pipes.

This is a marvelous technology that relies primarily on the Earth’s natural thermal energy, a renewable resource, to heat or cool a home or commercial building. The second most important addition is an energy Ground Heat Pump (GHP) system that requires a the small amount of electricity it employs to concentrate what Mother Nature provides and then to circulate high-quality heating and cooling throughout the structure.

Homeowners and businesses who use Ground Source Heat Pumps (GSHP) systems give them superior ratings because of their ability to deliver comfortably warm air, even on the coldest winter days, and because of their extraordinarily low operating costs. As an additional benefit, Ground Heat Pump (GHP) systems can provide inexpensive hot water, either to supplement or replace entirely the output of a conventional, domestic water heater.

Lake and pond geothermal water pump and dump systems are very efficient.

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