Geothermal Technology

Choosing the Right Geothermal System
Couldn't be Easier!

Call today to schedule your consultation and discover the comfort and cost savings of geothermal technology. With increasing tax credits and utility rebate incentive programs, now is a great time to invest in a geothermal system!  

 Types of Geothermal Installations

Geothermal Vertical Loop

A vertical closed loop field is composed of pipes that run vertically in the ground. A hole is bored in the ground, typically 50 to 400 feet deep. Pipe pairs in the hole are joined with a U-shaped cross connector at the bottom of the hole.

The borehole is commonly filled with a bentonite grout surrounding the pipe to provide a thermal connection to the surrounding soil or rock to improve the heat transfer. Thermally enhanced grouts are available to improve this heat transfer.

Geothermal Horizontal Loop

A horizontal closed loop field is composed of pipes that run horizontally in the ground. A long horizontal trench, deeper than the frost line, is dug and U-shaped or slinky coils are placed horizontally inside the same trench.

Excavation for shallow horizontal loop fields is about half the cost of vertical drilling, so this is the most common layout used wherever there is adequate land available.

Geothermal Pond/Lake Loop

A closed pond loop is not common because it depends on proximity to a body of water, where an open loop system is usually preferable. A pond loop may be advantageous where poor water quality precludes an open loop, or where the system heat load is small.

A pond loop consists of coils of pipe similar to a slinky loop attached to a frame and located at the bottom of an appropriately sized pond or water source.

Geothermal Open Loop

In an open loop system, the secondary loop pumps natural water from a well or body of water into a heat exchanger inside the heat pump. Heat is either extracted or added by the primary refrigerant loop, and the water is returned to a separate injection well, irrigation trench, tile field or body of water.

The supply and return lines must be placed far enough apart to ensure thermal recharge of the source.

Our clients say

“Everyone involved was professional and the process went smoothly. The system is much quieter and keeps the temperature throughout the house more even than the old furnace. I expected to see long term savings with this energy efficient system, but was elated to see huge savings in just the first year! "

Robert Teague, Lancaster 

“This is while keeping the house now at a constant 70 degrees ... so the comfort level greatly improved. The air conditioning also works extremely well, running much less than the old high efficiency system. I would recommend geothermal and Mid-Atlantic as the installer.”

DRW, York PA

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