Closed-Loop Applications

CLOSED LOOP - HEAT EXCHANGER INSTALLATION

Residential and Commercial

Key Benefits

Low-Cost Heating & Cooling

Reliability and Durability

Low-Cost Hot Water Generation

Greater Comfort

Very quiet operation

Kind to the environment

Capabilities

A closed-loop geothermal system consists of high-density polyethylene pipe buried in the earth that circulates water throughout the system. It is similar to the pipe used for gas lines, except the pipe's composition is conducive to geothermal needs. This is important especially to the EPA who has endorsed ground-loop systems as the premier alternative heating and cooling source for homes and industry. Georgia Geothermal uses a thermal fusion technique that seals the pipe to insure there are no leaks inside the house or in the ground. The lines are then pressure tested to insure loop quality. Georgia Geothermal offers an exclusive 25-year performance warranty on loops in conjunction with certified and approved heating and air conditioning contractors. No other installer offers a warranty as comprehensive as Georgia Geothermals.

Georgia Geothermal offers many different geothermal closed-loop installation techniques: lake, horizontal bore, vertical mud rotary, and air hammer.

Lake Loop: Lake loops are installed by placing a heat exchanger into a body of water.; Heat transference is optimal in lake loop applications; allowing the specific heat of the water to dissipate heat from the heating loops very rapidly. Lake loops are built off-site using polyethylene pipe, rigid schedule 40 PVC fittings and connections, and galvanized fencing to protect the loop. The loops are then floated onto the water, and submerged to a predetermined location by Georgia Geothermal.

Horizontal Directional Bore: Horizontal directional bore installation utilizes directional boring technology to install the loop heat exchanger in the earth.; The directional boring machine bores under the earth to depths of six (6) to ten (10) feet then levels out and bores up to 500 linear feet to install the system. The bore head pops up at a predetermined location, attaches on to the heat exchanger, and pulls it back through the earth. Georgia Geothermal uses a high-solids grouting material to insure optimum heat transfer for maximum performance. The major benefit of this type of installation is a minimal disturbance to the earth above the installation. Horizontal directional bore installation is one of the most cost-effective installation methods.

Vertical Mud Rotary and Air Hammer: This installation utilizes a vertical mud rotary drill to place the heat exchangers from 150 to 500 feet below the earth's surface.; Mud rotary applications are beneficial when land quantity is limited and geological conditions are favorable. Vertical air hammer installation uses a vertical hammer boring approach to install the polyethylene heat exchanger loop field. The installation is the same as in a vertical mud rotary installation but soil conditions are near to or solid rock. Vertical air hammer applications are beneficial because of the qualities in rock (i.e. granite) that generally allow for excellent heat transfer.

Commercial Closed-Loop Applications

Residential Closed-Loop Applications

GEORGIA GEOTHERMAL ONLINE CONTROL

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