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    Geothermal is the term for a space conditioning system that uses geothermal, or ground source heat pumps (GSHP), to take advantage of the relatively constant temperature of the earth to provide heating, cooling and hot water for buildings. Rather than creating heat like conventional systems, GeoExchange systems use heat that already exists. They consist of three elements: the ground heat exchanger, the heat pump unit and the air delivery system (ductwork).

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How does a GeoExchange system work?

   In the cooler months of the year, the ground heat exchanger collects heat that is found in the ground and then carries it through the system, transporting it into the indoor air delivery system. During the warmer months, this process is reversed, so that it cools the building by pulling the heat from the building and then depositing it in the ground outside.
    A ground heat exchanger consists of a grid of buried plastic pipe (ground loops) through which a heat exchange medium circulates. This circulating fluid inside of the loops is how heat is absorbed from the earth and then transferred to the building, or from the building into the ground.


Four Types of Ground Loop Systems

   The type of system that you need to have installed will depend on your specific needs, climate and soil conditions, and the available land area. All four types of systems work for both heating and cooling.

Open-loop systems are not sealed and are open at either end to obtain the liquid heat exchange medium (water) from an existing well surface body, and to discharge it externally also. Open loops require adequate water for the needs of the system.

Closed-Loop systems consist of horizontal, vertical or pond/lake loops. The heat pump and loop form a sealed, pressurized system through which the liquid heat exchange medium is circulated.

Horizontal and vertical closed-loop systems are laid horizontally in trenches or vertically in boreholes. Both are placed in areas adjacent to buildings they serve; systems can go in yards or under parking lots, driveways or playing fields. Any area with appropriate soil conditions and adequate square footage near a home or business will work.

Pond or lake loops require a nearby body of water of sufficient depth to put the loops.

Advantages

   Geothermal systems are completely self-contained. The heat pump unit is housed entirely inside and is connected to the ground loop that is buried outside. The unique flexibility of ground source heat pumps allows them to be used for residential and commercial buildings around the world. They are quiet, pollution free and do not detract from the surrounding landscape.

Savings-Geothermal systems can cut your home or business heating and cooling costs by 50 percent and provide hot water for free or at a substantial savings.

Durability– Ground source heat pumps last longer than conventional systems because they are protected from harsh outdoor weather. The heat pump unit is housed indoors and the loop is underground.

Low Maintenance– Geothermal systems have fewer mechanical components, making them more reliable and less prone to failure. The ground loop has an expected life of over 50 years and requires no maintenance.

Cleanliness– Geothermal systems work toward the preservation of the environment by minimizing present environmental problems like acid rain, air pollution and the destruction of the ozone layer.

Low Noise– Ground source heat pumps have no exposed, noisy outside units. The unit operates quietly to satisfy your needs without disturbing you or your neighbors.

Conservation– Geothermal systems work with the environment by using the earth’s moderate ground temperature to heat your home or business in the winter and to cool it in the summer.

Flexibility– Geothermal systems can be adapted for residential, institutional and commercial buildings anywhere. They can be placed in both new buildings or used for retrofits of existing buildings.

Health– Geothermal systems keep indoor air cleaner and free of pollens, outdoor pollutants, mold spores and other allergens. If indoor air quality is a priority with you, consider Geothermal.


What We Do:

   Out of the complicated process to get the customer their very own geothermal system, Yadkin Well Company Inc. handles all of the dirty work, including drilling the well, digging the trench, and installing the pipe from the source point to the home or building. We have all the equipment needed to do our part, even including the dozer. We are capable of servicing all types of geothermal systems (vertical loops, horizontal loops, open loops, and pond/lake loops.) We also offer the thermal conductivity testing needed to determine which type of loop is best for you.

 

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