Ground Loops in Kitsap County, WA, Geothermal Applications

You’ve finally gotten, or are thinking about getting, a a new heating and cooling system. Maybe you’re weighing the advantages of a new Geothermal HVAC. If so, you undoubtedly want to know a little 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 essentially just a system of pipes buried in the ground. A few basic sorts of ground loop systems are used for heating and cooling typical residential and commercial]26] buildings.

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

There are four different types 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 right system for you is determined by the structure and its surroundings. Residential systems usually use vertical or horizontal loops.

Below are further explanations of each kind of ground loop.

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

Vertical ground loops are used most often in residences because, unlike horizontal loops, they don’t have to have a significant amount of space. They’re installed by drilling small-diameter holes in the ground to a depth of 100-400 feet. Then pipes are driven into the holes and connected under ground to form the vertical loop. Next, more pipes are attached that convey fluid to the indoor system to transfer the necessary temperature from the ground.

A horizontal loop system has to have significantly more space but typically doesn’t cost as much because it just uses 2 straight pipes set 6 inches in the ground within an area of ¼ to ¾ acre.

If you want a pond loop system, you plainly must be near a pond, lake, pond, or well. Coils are installed vertically and attached to the bottom of the water source. Water is then moved through more pipes beneath the earth to a pump, where the heat is withdrawn and cool water is put back into the pond. Nevertheless, in order for this system to work, the water can not 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 an ample 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.

There are two ways to take care of used water: 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 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. Make certain you check with your local contractor on whether there’s enough water available to support installing an open loop geothermal heating system.