Lexington-Fayette, Kentucky
763 Newtown Pike, #140
Lexington, KY 40511
(859) 559-6409

Closed Loop Versus Open Loop Geothermal Systems September 13, 2019

Lexington-Fayette, Fayette
Closed Loop Versus Open Loop Geothermal Systems, Lexington-Fayette, Kentucky

If you’re in the market for a new HVAC system, you should look into geothermal heating and air conditioning. Renewable geothermal energy is a highly efficient technology for heating and cooling homes. The type of geothermal system an HVAC contractor installs depends on the soil and groundwater conditions of your property. Here’s what you need to know about the differences between closed-loop and open-loop systems so you know which is best for you. 

Closed-Loop Systems 

hvac contractorIn a closed-loop, an HVAC contractor installs a series of continuously looped pipes underground. These pipes are full of an antifreezelike substance that feeds a geothermal heat pump. They’re more common than open-loop geothermal systems. Closed loops can be installed vertically in a small area. Although they can also be installed horizontally, they’ll require much more room.  

Open-Loop Systems

An open-loop system is less common because it requires a fairly large source of groundwater. In this system, pipes are connected directly to that supply of water, which is then sent through the heat pump. There are a few concerns with open-loops. If the water source, like a pond or a well, is shared with a neighbor, their supply of water is affected. Used water then needs to be returned safely to the water source with no contamination. 

Which System Is Right for You?

Having an HVAC contractor evaluate your property is the first step in deciding which system would work best for you. Not only is the existence of a groundwater source key to an open-loop system, the source needs to be evaluated for volume, acidity, and hardness. Open-loop systems are also much larger and can require more maintenance to stop water deposit buildup. Since a closed-loop system is self-contained, it usually requires less maintenance over the long run.

 

Advantage Air in Lexington, KY, has over 20 years of experience delivering reliable, quality heating and cooling repairs and installations. Their certified HVAC contractors will keep your home comfortable all year long. Regular HVAC maintenance is affordable and will save you money. To schedule a free quote, call (859) 559-6409, or visit them online to learn more about their residential HVAC services.

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