Ground Loops in Indianapolis, Indiana, Geothermal Applications

You’ve got to have a new heating and cooling system. Maybe you’re partial to the idea of a new Geothermal HVAC. If so, you undoubtedly want to know a little bit more about how geothermal works.

Geothermal HVACs take consistent temperature from the ground to put hot or cool air into your home. This can be done because of an underground system called a geothermal ground loop.

Ground loops are pretty much just a series of pipes buried in the earth. A few basic kinds of geothermal loop systems are used for heating and cooling standard residential and commercial]26] buildings.

It works when antifreeze fluid goes through plastic pipes to get heat quickly and efficiently up to a heat pump in the house.

Typically used are four different kinds of ground loops: Open Loop, Pond Loop, Horizontal Loop and Vertical Loop. These are divvied up into two categories categories: either they’re open loop systems or closed loop systems. The right system for you is determined by the specific structure and its environment. Residential systems mostly use vertical or horizontal loops.

Below are further explanations of each sort of ground loop.

Closed systems, which include vertical, horizontal, and pond loops, continuously circulate water through them.

Vertical ground loops are used most often in residences because, unlike horizontal loops, they don’t have to have a significant amount of space. They’re installed by drilling small holes in the ground that go 100-400 feet deep. Then pipes are driven into the holes and connected under ground to form the vertical loop. Next, more pipes are attached that channel fluid to the indoor system to transfer the desired temperature from the ground.

In comparison with a vertical loop system, a horizontal system needs much more space but usually is less pricey considering it uses only 2 straight pipes set 6 inches in the ground in an area of ¼ to ¾ acre.

If you’re thinking of getting a pond loop system, you plainly must be near a pond, lake, pond, or well. Coils are installed vertically and fastened to the bottom of the water source. Water is then transferred through more pipes beneath the earth to a pump, where the heat is drawn out and cool water is reintroduced to the pond. Still, in order for this system to work, the water can never be be acidic or else pipes will erode and filters will need replacing often.

The key 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 home or other structure.

Generally speaking, used water is taken care off in either of these ways: through surface drainage or water re-injection. In returning the water back to the earth, it is important to note that there is no pollution generated. The only difference in water that’s processed through a geothermal heat pump is a negligible change in temperature.

Before you install an open loop system, it is critical 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. Be sure to check with your local contractor on whether there’s enough water available to support installing an open loop geothermal heating system.