Ground Loops in Scranton, Pennsylvania, Geothermal Applications

You’ve finally gotten, or are contemplating getting, a a new heating and cooling system. Maybe you’re weighing the advantages of a new Geothermal HVAC. Whatever the situation, you undoubtedly want to know a little more about how such a system works.

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

Ground loops are essentially just an underground pipe system. There are several basic types of geothermal loop systems that can be used for heating and cooling most residential and commercial buildings.

Antifreeze fluid flows through the pipes to get heat effectively and efficiently down 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. All four are split into two distinct categories: either they’re open loop systems or closed loop systems. The best system for your house is dependent on your building and its environment. Household systems typically 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 the most common type used residentially because, unlike horizontal loops, they don’t require much of space. They’re set in place by drilling small holes in the ground that go 100-400 feet deep. Then pipes are driven into the holes and connected below ground to form the vertical loop. Next, extra pipes are attached that carry fluid to the indoor system to transfer the desired temperature from the ground.

A horizontal system takes up a lot more space but is actually less costly considering it just 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, you plainly must be close to a pond, lake, pond, or well. Coils are installed vertically and
secured to the bottom of the water source. Water is then transferred through more pipes underground to a pump, where the heat is extracted and cool water is put back into the pond. However, in order for this system to work, the water can in no way be be acidic or else pipes will corrode and filters will have to be replaced often.

The primary difference between open and closed looped systems is the open loop’s need for a sufficient 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 taken care of in one of two ways: through surface drainage or water re-injection. In returning the water back to the earth, it is crucial to note that there is no pollution generated. 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 drain a neighbor’s well source. Be sure to check with your local contractor on whether there’s enough water available to warrant installing an open loop geothermal heating system.