Geothermal heating and cooling systems are gaining popularity throughout the United States for their free, renewable energy. If you’re thinking about making the switch, understanding how it works — and how much you can save — might just be the determining factor to give the project the green light.
Here’s how it works:
There are two types of geothermal systems: closed loop and open loop. A closed loop system is comprised of a series of looping pipes that can be installed underground. A liquid — usually a biodegradable antifreeze — moves through the pipes, drawing heat energy from the ground and traveling through pipes, reaching your home in the form of heat. In the summer, this system works in reverse, removing heat energy from inside your home, where the loops act as a heat sink for cooling. A pump moves the heat into or out of your home, so the only energy you pay for is electricity to power the pump. The ground energy that can be sourced is unlimited and free.
The primary difference between closed loop and open loop systems is that the latter uses ground water, usually in the form of a water well or nearby pond. The water is moved via pipe to the heat pump unit, where it helps heat or cool your home.
Why it’s efficient
Other types of heat pumps, in particular air-source heat pumps, are also efficient, but they’re subject to outdoor temperature extremes and are only able to provide efficient heating in temperatures above 30 degrees. Because geothermal loops are buried under the ground or in a water source, they’re not subject to outdoor temperature variations or extremes.
Give the geothermal experts at Team Bob’s Heating Cooling Plumbing a call today for more information about using free, renewable energy for your home. We proudly provide homes throughout Grand Traverse County and the five surrounding counties.
Our goal is to help educate our customers in Traverse City, Michigan and surrounding areas about energy and home comfort issues (specific to HVAC systems). For more information about geothermal energy and other HVAC topics, download our free Home Comfort Resource guide.
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