Ground Loops in Ord, Nebraska, Geothermal Applications

You’ve just gotten or are thinking about purchasing a a new heating and cooling system. Maybe you’re considering a new Geothermal HVAC. Whatever the case, you probably want to know a little bit more about how geothermal works.

Geothermal HVACs variously cool and heat your home by extracting ground temperature. This works because of an underground system called a geothermal ground loop.

Ground loops are,in essence, just an underground pipe system. A few basic types of geothermal loop systems are used for heating and cooling commercial or residential buildings.

It works when antifreeze fluid goes through these plastic pipes to move heat fast and efficiently to a heat pump in the house.

There exist four different sorts of loops: Open Loop, Pond Loop, Horizontal Loop and Vertical Loop. All four fall into one of two categories: either they’re open loop systems or closed loop systems. The appropriate system for you is contingent on the structure and the property on which it sits. Residential systems mostly use vertical or horizontal loops.

Below are additional details on 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 most often in residences because, unlike horizontal loops, they don’t have to have a significant amount of space. They’re set in place by drilling small holes in the ground to a depth of 100-400 feet. Then pipes are inserted into the holes and connected below the ground to form the vertical loop. Next, extra pipes are attached that channel fluid to the indoor system to transfer the needed temperature from the ground.

A horizontal loop system has to have a lot more space but is typically not as expensive considering it just uses 2 straight pipes placed 6 inches underground over an area of ¼ to ¾ acre.

If you’re partial to a pond loop system, you plainly must be near a pond, lake, pond, or well. Coils are installed vertically and anchored to the bottom of the water source. Water is then transported through more pipes belowground 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 must not be acidic or else pipes will erode 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 sufficient 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 house 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 important to note that there’s no pollution. The only difference in water that’s processed through a geothermal heat pump is a minor change in temperature.

Prior to installing 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 drain a neighbor’s well source. Make sure you check with your local contractor on whether there’s enough water available to support installing an open loop geothermal heating system.