Geothermal Loop Types

We install "closed loop" loop fields. The loop field transfers heat to and from the ground, eliminating the need for fossil fuels. It is the heart of a geothermal system and the biggest advantage over ordinary technologies.

Vertical Loops

 
Vertical Loops Vertical loops are used where space is limited or where soil conditions are not conducive to horizontal loops. Installing vertical loops requires the use of a drilling rig. Multiple holes are bored about 10 feet apart. A double pipe connected with a U-bend is inserted into each hole. The hole is filled with grout to provide good contact around the pipe and to seal the hole. The vertical pipes are then connected to a header system horizontally a few feet below the surface. The depth of the holes is dependent upon soil/rock conditions and the size of the system. Although most holes are bored about 100 to 250 feet deep, there is no "magic depth" that needs to be reached.

Horizontal Loops

 
Horizontal Loops If adequate land is available, horizontal loops can be installed. One or more trenches are dug using a backhoe or chain trencher. Polyethylene pipes are inserted and the trenches are backfilled. There are various designs of horizontal loops. Trenches are usually 250 feet. A typical home requires 1/4 to 3/4 of an acre for the trenches.

Pond Loops

 
Pond Loops If an adequately sized body of water is close to your home, a pond loop can be installed. A series of closed loops can be coiled and sunk into the bottom. Ideally, the pond should be close to the home (less than 200 ft.). If the pond is farther from the home, the benefit of using a pond loop is reduced due to added trenching, materials and pumping costs. Pond loop coils are connected together on dry land, and then floated into location. Once filled with fluid, they will sink to the bottom and remain there. Pond loops are a cost effective way to install a geothermal system, because trenching is limited to only the supply and return piping from the pond to the house.
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