Ground Loops in Atlantic, Iowa, Geothermal Applications

You’ve finally gotten, or are contemplating getting, a a new heating and cooling system. Maybe you’re considering a new Geothermal HVAC. Whatever the circumstances, you probably want to know a bit more about how geothermal 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 an underground pipe system. There are several basic types of geothermal loop systems that can be used for heating and cooling typical residential and commercial]26] buildings.

It works when antifreeze fluid goes through plastic pipes to get heat quickly and efficiently up to a heat pump in the house.

There are four different types of geothermal ground loops: Open Loop, Pond Loop, Horizontal Loop and Vertical Loop. These fall into one of two different categories: either they’re open loop systems or closed loop systems. The right system for your home is determined by the building and its environment. Household systems mostly use vertical or horizontal loops.

Below are further explanations of each type of ground loop.

Closed systems, which consist of 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 a significant amount of space. They’re set in place by drilling tight-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, additional pipes are attached that channel fluid to the indoor system to transfer the necessary temperature from the ground.

In contrast to a vertical loop system, a horizontal system needs much more space but usually doesn’t cost as much because it uses only 2 straight pipes placed 6 inches underground within 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 attached to the bottom of the water source. Water is then conveyed through more pipes beneath the earth to a pump, where the heat is drawn out and cool water is put back into the pond. Nevertheless, in order for this system to work, the water must not be acidic or else pipes will decay and filters will need to be replaced often.

The essential difference between open and closed looped systems is the open loop’s need for an adequate 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 dwelling or other structure.

Used water is disposed of in one of two ways: through surface drainage or water re-injection. In returning the water back to the earth, it’s worth mentioning that pollution is not a by-product. The only difference in water that’s processed through a geothermal heat pump is a minute 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 drain a neighbor’s well source. Make sure you check with your local contractor on whether there’s enough water in the vicinity to justify installing an open loop geothermal heating system.