Ground Loops in Danville, Pennsylvania, Geothermal Applications

You’ve just gotten or are thinking about getting a a new heating and cooling system. Maybe you’re considering a new Geothermal HVAC. If so, you undoubtedly want to know a little more about how such a system works.

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

Ground loops are basically just a series of pipes buried in the earth. There are various basic kinds of geothermal loop systems that can be used for heating and cooling most residential and commercial buildings.

The way it works is, antifreeze fluid goes through plastic pipes to move heat quickly and efficiently to a heat pump in your home.

There are four different sorts of 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 appropriate system for your home is dependent on your structure and the property on which it sits. Household systems mostly use vertical or horizontal loops.

Below are additional details on each sort of ground loop.

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

Vertical ground loops are used typically in residences because, unlike horizontal loops, they don’t have to have a lot of space. They’re installed by drilling tight-diameter holes in the ground to a depth of 100-400 feet. Then pipes are inserted 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 needed temperature from the ground.

A horizontal loop system has to have much more space but is typically not as costly since it uses 2 straight pipes set 6 inches in the ground within an area of ¼ to ¾ acre.

In order to make use of a pond loop system, it should be evident that you must be near a pond, lake, pond, or well. Coils are installed vertically and
secured to the bottom of the water source. Water is then transported through more pipes belowground to a pump, where the heat is drawn out 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 decay and filters will need 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, such as 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 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 important to note that there is no pollution generated. The only difference in water that’s processed through a geothermal heat pump is a modest change in temperature.

Before installing 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 in the vicinity to warrant installing an open loop geothermal heating system.