Ground Loops in Green Bay, WI, Geothermal Applications

You’ve just bought or are mulling over buying a 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 more about how one works.

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

Ground loops are essentially just a series of pipes buried in the earth. Various basic sorts of geothermal loop systems are used for heating and cooling commercial or residential buildings.

The way it works is, antifreeze fluid flows through plastic pipes to get heat effectively and efficiently up to a heat pump in your house.

There exist four different types of 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 best system for you is determined by your structure and the property on which it sits. Residential systems primarily use vertical or horizontal loops.

Below are further explanations of each kind of ground loop.

Closed systems, which include 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 that extend 100-400 feet deep. Then pipes are placed into the holes and connected below the ground to form the vertical loop. Next, additional pipes are attached that carry fluid to the indoor system to transfer the desired temperature from the ground.

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

If you’re thinking of getting 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 fastened to the bottom of the water source. Water is then transported through more pipes belowground to a pump, where the heat is pulled out and cool water is put back into the pond. Nevertheless, in order for this system to work, the water can in no way be be acidic or else pipes will erode 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, like a well or pond. 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 disposed of in one of two ways: through surface drainage or water re-injection. In returning the water back to the earth, it must be pointed out that pollution is not a by-product. The only difference in water that’s processed through a geothermal heat pump is a minor change in temperature.

Before you install an open loop system, it is critical to know whether a well or pond contains enough water to power your geothermal heat pump, and that it won’t exhaust a neighbor’s well source. See that you check with your local contractor on whether there’s enough water available to support installing an open loop geothermal heating system.