Ground Loops in New Jersey, New Jersey, Geothermal Applications

You’ve just bought or are mulling over buying a a new heating and cooling system. Maybe you’re weighing the advantages of a new Geothermal HVAC. Whatever the circumstances, you undoubtedly want to know a bit more about how one works.

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

Ground loops are,in essence, just a system of pipes buried in the ground. There are a few basic types of these systems that can be used for heating and cooling common residential and commercial]26] buildings.

Antifreeze fluid goes through these plastic pipes to transfer 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 fall into one of two different categories: either they’re open loop systems or closed loop systems. The appropriate system for your house is dependent on your building and the environment surrounding it. Household systems mostly use vertical or horizontal loops.

Below are additional details on each kind of ground loop.

Closed systems, which consist of vertical, horizontal, and pond loops, continuously move water through them.

Vertical ground loops are used most often in residences because, unlike horizontal loops, they don’t have to have much of space. They’re installed 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.

When compared to a vertical loop system a horizontal system needs much more space but is actually not as costly because it uses 2 straight pipes set 6 inches in the earth in an area of ¼ to ¾ acre.

If you want a pond loop system, you obviously must be in close proximity to a pond, lake, pond, or well. Coils are installed vertically and affixed to the bottom of the water source. Water is then transferred through more pipes beneath the earth to a pump, where the heat is extracted and cool water is reintroduced to the pond. Nevertheless, in order for this system to work, the water can never be be acidic or else pipes will decay and filters will have to be replaced often.

The essential difference between open and closed looped systems is the open loop’s need for an adequate source of groundwater, a well or a pond, for example. From there, it directly pumps water into the heat pump unit for use in heating and cooling your home 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 pollution is not a by-product. 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 essential to know whether a well or pond has enough water to power your geothermal heat pump, and that it won’t drain a neighbor’s well source. See that you check with your local contractor on whether there’s enough water on hand to justify installing an open loop geothermal heating system.