Ground Loops in Defiance, Ohio, Geothermal Applications

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

Geothermal HVACs variously cool and heat your home by extracting ground temperature. This works 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 ground loop systems are used for heating and cooling common residential and commercial]26] buildings.

It works when antifreeze fluid goes through the pipes to move heat quickly and efficiently to a heat pump in the building.

There are four different kinds of geothermal ground loops: Open Loop, Pond Loop, Horizontal Loop and Vertical Loop. All four are split into two distinct categories: either they’re open loop systems or closed loop systems. The right system for your home is determined by the specific building and its surroundings. Household systems primarily use vertical or horizontal loops.

Below are additional details on each type of ground loop.

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

Vertical ground loops are used typically in residences because, unlike horizontal loops, they don’t take up a significant amount of space. They’re positioned by drilling small holes in the ground to a depth of 100-400 feet. Then pipes are driven into the holes and connected under ground to form the vertical loop. Next, extra pipes are attached that carry fluid to the indoor system to transfer the necessary temperature from the ground.

When compared to a vertical loop system a horizontal system requires a lot more space but typically costs less because it uses 2 straight pipes set 6 inches in the earth in an area of ¼ to ¾ acre.

If you’re partial to 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 underground to a pump, where the heat is pulled out and cool water is reintroduced to the pond. That said, in order for this system to work, the water can never be be acidic or else pipes will corrode and filters will have to be replaced often.

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

Used water is disposed 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 minute change in temperature.

Before installing an open loop system, it is vital to know whether a well or pond contains enough water to power your geothermal heat pump, and that it won’t drain a neighbor’s well source. Be sure to check with your local contractor on whether there’s enough water at hand to support installing an open loop geothermal heating system.