Ground Loops in Mobile, Alabama, Geothermal Applications

You’ve just bought or are thinking about getting a a new heating and cooling system. Maybe you’re partial to the idea of a new Geothermal HVAC. Whatever the case, you very likely want to know a little bit more about how geothermal works.

Geothermal HVACs take consistent temperature from the ground to deliver hot or cool air to your home’s interior. This can be done because of an underground system called a geothermal ground loop.

Ground loops are,in essence, just a system of pipes buried in the ground. There are various basic sorts of ground loop systems that can be used for heating and cooling commercial or residential buildings.

It works when antifreeze fluid goes through plastic pipes to transfer heat fast and efficiently to a heat pump in the building.

There exist four different types of 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 best system for you is determined by the specific structure and its surroundings. Household systems typically use vertical or horizontal loops.

Below are further explanations of each sort of ground loop.

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

Vertical ground loops are the most common type used residentially because, unlike horizontal loops, they don’t require much of space. They’re installed by drilling small holes in the ground to a depth of 100-400 feet. Then pipes are inserted 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.

When compared to a vertical loop system a horizontal system requires much more space but is usually less pricey considering it just uses 2 straight pipes set 6 inches in the earth over an area of ¼ to ¾ acre.

If you’re thinking of getting 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 transferred through more pipes belowground to a pump, where the heat is extracted and cool water is reintroduced to the pond. Still, in order for this system to work, the water can not be acidic or else pipes will decay and filters will have to be replaced often.

The primary 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.

Typically, used water is taken care off in either of these ways: through surface drainage or water re-injection. In returning the water back to the earth, it must be said 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 you install an open loop system, it is critical to know whether a well or pond holds enough water to power your geothermal heat pump, and that it won’t use up a neighbor’s well source. Be sure to check with your local contractor on whether there’s enough water available to support installing an open loop geothermal heating system.