Ground Loops in Denver, Colorado, Geothermal Applications

You’ve got to have 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 bit 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,in essence, just a series of pipes buried in the earth. Several basic sorts of ground loop systems are used for heating and cooling common residential and commercial]26] buildings.

It works when antifreeze fluid travels through the pipes to move heat quickly and efficiently to a heat pump in the 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 right system for you is contingent on your building and its surroundings. Household systems typically use vertical or horizontal loops.

Below are further explanations of each sort of ground loop.

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

Vertical ground loops are used commonly in residences because, unlike horizontal loops, they don’t have to have much of space. They’re positioned by drilling small-diameter holes in the ground that extend 100-400 feet deep. Then pipes are placed 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 much more space but is generally less expensive because it just uses 2 straight pipes placed 6 inches down in the ground over an area of ¼ to ¾ acre.

In order to have a pond loop system, you obviously must be near a pond, lake, pond, or well. Coils are installed vertically and fastened to the bottom of the water source. Water is then transferred through more pipes beneath the earth to a pump, where the heat is drawn out and cool water is reintroduced to the pond. Still, in order for this system to work, the water can in no way be be acidic or else pipes will corrode and filters will need replacing often.

The prime difference between open and closed looped systems is the open loop’s need for an ample 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 dwelling 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 must be said 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 you install an open loop system, it is critical to know whether a well or pond has enough water to power your geothermal heat pump, and that it won’t use up a neighbor’s well source. See that you check with your local contractor on whether there’s enough water at hand to go ahead with installing an open loop geothermal heating system.