Geothermal Loops - Geothermal Loopfields

Geothermal installers are trained to determine the best type of geothermal GEOTHERMAL LOOPSloops to use in any situation. The type of loop installed is based on the property itself, available land, and installation costs based on geographic location.

Below is a description of the various types of geothermal loops.

Click to Download the Loopfield Catalog

Open loop systems are some of the easiest to install. An open loop system can utilize almost any water source that remains above 45 degrees F, which means wells, running streams, lakes, etc.

Our systems pump water from the source, through the geothermal heat pump, and then discharge the water after removing about 4 degrees of heat. The water remains clean and can be allowed to absorb back in to the water source where it regains the energy from the earth again for the next cycle through the geoexchange unit.

Closed geothermal loops use pipes in which both ends connect to the heat pump. Environmentally friendly glycol anti-freeze circulates within the loop to transfer heat from the ground to the geothermal heat pump. The lengths and number of loops required is determined by the heat loss of the building. Closed geothermal loops can be placed horizontally in shallow trenches or at the bottom of a pond, or vertically in wells where space is limited.

Vertical Geothermal Loops
Vertical loops are used when space is limited. Holes are bored using a drilling rig, and a pair of pipes with special u-bend fittings which are inserted into the holes. A typical home requires three to five bores with about a 15-foot separation between the holes.


Horizontal Loop
Used where adequate land is available, horizontal loops involve one or more trenches that are dug using a backhoe or chain trencher. Polyethylene pipes are inserted, and the trenches are backfilled. A typical home requires 1/4 to 3⁄4 of an acre for the trenches.


Pond Loop
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 to the bottom. A 1⁄2 acre, 8-foot-deep pond is usually sufficient for the average home.



Slinky loops are common for horizontal trenches as they enable a greater amount of tubing to be installed in a smaller space.


Eagle Mountain understands that reducing installation time is essential for successful geothermal installations. Our product line is designed to save time in design, purchasing, and at the job site.

Eagle Mountain offers 2 to 8 Loop Horizontal, Vertical, and Pond Configuration Loopfield Kits with both GEOSLINKY and HDPE Coils.

Download the Loopfield Products & Accessories Catalog Now

Call (585) 412-4245 during normal business hours, or send us a quick message with your questions about Geothermal Loopfields.

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“As a 25 year licensed HVAC journeyman, I can unequivocally say that I am a raving fan of Eagle Mountain from here on. The installation went smoothly and it is as quiet and efficient as advertised. Thank you very much for all your help and getting my questions answered. I couldn't be happier! “ 
Tony --  Jacksonville, FL

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