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How a Geothermal Installation Works

You may not be familiar with geothermal heating and cooling technology, but you may want to get a bit more familiar when you learn of the great heating and cooling performance that such systems offer, and the outstanding efficiency with which they operate. Of course, we must also advise that a geothermal HVAC system is not the right fit for every property. All homeowners are going to have their own personal preferences that inform their HVAC system selection. With a geothermal system, though, your property itself will play a role in determining whether or not geothermal heating and cooling in Everett, WA is the right option for you. Read on, and contact G & S Heating Cooling & Electric with any questions that you may have. 

Geothermal Loop Options

The key to the geothermal system’s operation is the geothermal loop. This system is responsible for the circulation of a heat transfer fluid beneath the ground, absorbing or dissipating thermal energy therein. There are a few different options to consider when it comes to a geothermal loop.

Closed-Loop Systems

The most common type of geothermal loop is the closed-loop system. This type of loop comes in three basic varieties. A horizontal-closed loop system is generally the option that works best for most homeowners, should the property be suitable. It entails the excavation of a relatively shallow trench, in which a closed geothermal loop is installed. Should your property not be accommodating for such a system, a vertical installation is also possible. This requires the drilling of deeper holes on the property, and the loop is installed vertically within these holes. A pond/lake loop configuration is the third option, in which the loop is simply submerged in a body of water on the property. The water body must satisfy a number of criteria, to ensure the integrity of the system.

Open-Loop Systems

While perhaps not as common as closed-loop systems, open-loop geothermal systems can be used in certain scenarios. In an open loop system, the antifreeze solution used in closed-loop systems is simply replaced with water. The water itself acts as the heat transfer fluid, and simply returns to the water body that it comes from, or drains off on the property, when its job is done. This type of system requires a substantial enough body of water for this use, and, again, that body of water must satisfy various criteria.

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