Ground Loops in Chillicothe, Ohio, Geothermal Applications

You need a new heating and cooling system. Maybe you’re partial to the idea of a new Geothermal HVAC. Whatever the circumstances, you probably want to know a bit more about how such a system works.

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

Ground loops are,in essence, just an underground pipe system. A few basic sorts of geothermal loop systems are used for heating and cooling commercial or residential buildings.

The way it works is, antifreeze fluid travels through the pipes to move heat quickly and efficiently up to a heat pump in your house.

Typically used are four different sorts 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 house is contingent on the building and the property on which it sits. Household systems primarily use vertical or horizontal loops.

Below are further explanations of each type of ground loop.

Closed systems, which encompass 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 take up a significant amount of space. They’re set in place by drilling small-diameter holes in the ground that extend 100-400 feet deep. Then pipes are driven into the holes and connected under ground to form the vertical loop. Next, more pipes are attached that channel fluid to the indoor system to transfer the desired temperature from the ground.

In contrast to a vertical loop system, a horizontal system needs much more space but typically is less pricey considering it uses only 2 straight pipes placed 6 inches down in the ground within an area of ¼ to ¾ acre.

In order to make use of 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 conveyed through more pipes belowground to a pump, where the heat is extracted 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 erode 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 instance. From there, it directly pumps water into the heat pump unit to be used in heating and cooling your home or other structure.

Normally, used water is disposed off in either of the following 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 minor change in temperature.

Before installing an open loop system, it is essential 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. See that you check with your local contractor on whether there’s enough water in the vicinity to justify installing an open loop geothermal heating system.