Ground Loops in Jasper, Indiana, Geothermal Applications

It’s time for you to get a new heating and cooling system. Maybe you’re partial to the idea of a new Geothermal HVAC. Whatever the case, you probably want to know a little bit more about how such a system works.

Geothermal HVACs take consistent temperature from the ground to put hot or cool air into your home. 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. There are several basic kinds of ground loop systems that can be used for heating and cooling commercial or residential buildings.

The way it works is, antifreeze fluid flows through the pipes to transfer heat effectively and efficiently up to a heat pump in your home.

Typically used are four different sorts 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 right system for you is dependent on the building and the environment surrounding it. Household systems typically 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 move water through them.

Vertical ground loops are used commonly in residences because, unlike horizontal loops, they don’t have to have a lot of space. They’re set in place by drilling small holes in the ground to a depth of 100-400 feet. Then pipes are driven into the holes and connected below the ground to form the vertical loop. Next, extra pipes are attached that convey fluid to the indoor system to transfer the desired temperature from the ground.

A horizontal system takes up a lot more space but generally is less pricey considering it uses 2 straight pipes placed 6 inches underground over an area of ¼ to ¾ acre.

In order to make use of a pond loop system, you obviously must be close to 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 underground to a pump, where the heat is extracted and cool water is put back into the pond. However, in order for this system to work, the water can never be be acidic or else pipes will decay and filters will need 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, 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 house or other structure.

Used water is taken care of in one of two ways: through surface drainage or water re-injection. In returning the water back to the earth, it must be noted that pollution is not a by-product. The only difference in water that’s processed through a geothermal heat pump is a modest change in temperature.

Before you install an open loop system, it is vital to know whether a well or pond contains enough water to power your geothermal heat pump, and that it won’t exhaust a neighbor’s well source. Make certain you check with your local contractor on whether there’s enough water on hand to support installing an open loop geothermal heating system.