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Geothermal Earth Loops for Columbus, Ohio

01/13/2012
In part three of our Introduction to Geothermal series, we are going to talk about geothermal loop systems and how each type works.

A geothermal loop is the series of underground pipes used to transfer heat to and from the earth. These pipes are made out of high-density polyethylene to create a reliable, long-lasting system. They are joined together using thermal fusion that will produce a bond that is much stronger than the original pipe itself. In fact, a properly installed loop can survive up to 200 years.
 
There are two main types of geothermal loop systems that are mostly used in today's installs: open loop systems and closed loop systems. Both systems have distinct pros and cons for your heating or cooling solution. We at Geo Source One Inc. have the knowledge and experience on both types, and we will help you by determining the best option for your geothermal installation.

Open loop geothermal solutions are designed to utilize the natural groundwater from under your home. Using a well, water is pulled from an existing aquifer and moved to the geothermal heat pump where its heat is extracted and the water is pumped back into the ground or to a designated runoff. Since the water that you are using is not being treated in any way, the only thing that is being returned to the ground is water that is slightly warmer or cooler (depending whether you're in heating or cooling mode).

One consideration to watch out for with an open loop system is water quality. Mineral build-up can occur from poor quality water. This can be remedied with an occasional cleaning. If the water in the ground has higher iron content, you may want to make sure that the discharge water is kept away from air before it is returned to prevent clogs.
 
Closed loops are just as they sound. Instead of pumping water from a well and depositing it elsewhere, water is circulated in a completely sealed circuit with a small amount of environmentally-friendly antifreeze.
 
There are two main types of closed loop installations: horizontal and vertical. Installing the system horizontally requires a decent amount of property. The piping is buried in trenches between 4 and 6 feet deep and can be up to 400 feet long. If you live on a smaller lot, the loops can be installed vertically by boring straight down using drilling equipment. This category of installation can be installed in as little as a 10ft by 10ft  area.
 
In either case, the bigger the building, the bigger the geothermal heat pump and loop needs to be. A good estimate is that for every ton of system capacity, you will need 500 to 600 feet of pipe.
 
Contact Geo Source One Inc. today to find out what system options are available to you here in Columbus, Ohio.
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About Geo Source One Inc.

Geo Source One Inc. has provided Columbus, Ohio geothermal heating and cooling solutions for many years. We proudly offer Columbus, Ohio WaterFurnace geothermal systems and stand behind our quality work and products. Call us at Geo Source One Inc. today. We are ready to bring you into the WaterFurnace Columbus, Ohio geothermal family.


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