Ground Loops in Terre Haute, Indiana, Geothermal Applications

You’ve just gotten or are looking into purchasing a a new heating and cooling system. Maybe you’re considering a new Geothermal HVAC. If so, you undoubtedly want to know a little more about how geothermal works.

Geothermal HVACs variously cool and heat your home by extracting ground temperature. This is possible because of an underground system called a geothermal ground loop.

Ground loops are basically just a series of pipes buried in the earth. Various basic types of geothermal loop systems are used for heating and cooling common residential and commercial]26] buildings.

It works when antifreeze fluid flows through these plastic pipes to transfer heat effectively and efficiently to a heat pump in your home.

There exist four different types of geothermal ground loops: Open Loop, Pond Loop, Horizontal Loop and Vertical Loop. These fall into one of two different categories: either they’re open loop systems or closed loop systems. The right system for you is contingent on the specific structure and its surroundings. Home systems usually use vertical or horizontal loops.

Below are additional details on each sort of ground loop.

Closed systems, which encompass vertical, horizontal, and pond loops, continuously push water through them.

Vertical ground loops are the most common type used residentially because, unlike horizontal loops, they don’t require much of space. They’re set in place by drilling tight-diameter holes in the ground to a depth of 100-400 feet. Then pipes are driven into the holes and connected below ground to form the vertical loop. Next, additional pipes are attached that convey fluid to the indoor system to transfer the necessary temperature from the ground.

In comparison with a vertical loop system, a horizontal system needs significantly more space but is typically less expensive because it just uses 2 straight pipes set 6 inches in the ground over an area of ¼ to ¾ acre.

In order to have a pond loop system, it should go without saying that you must be in close proximity to a pond, lake, pond, or well. Coils are installed vertically and anchored to the bottom of the water source. Water is then moved through more pipes belowground to a pump, where the heat is withdrawn and cool water is put back into the pond. Nevertheless, in order for this system to work, the water can not be acidic or else pipes will decay and filters will need to be replaced often.

The primary difference between open and closed looped systems is the open loop’s need for an ample source of groundwater, a well or a pond, for instance. From there, it directly pumps water into the heat pump unit to be used in heating and cooling your dwelling or other structure.

Used water is taken care of in one of two ways: through surface drainage or water re-injection. In returning the water back to the earth, it’s worth mentioning that there’s no pollution. The only difference in water that’s processed through a geothermal heat pump is a modest change in temperature.

Before you install an open loop system, it is essential to know whether a well or pond holds enough water to power your geothermal heat pump, and that it won’t use up a neighbor’s well source. Make sure you check with your local contractor on whether there’s enough water available to go ahead with installing an open loop geothermal heating system.