What is Geothermal Heating
The term Geothermal comes from the Greek words, "geo" (meaning earth) and "thermos" (meaning heat). The utilization of geothermal resources for heating is one of the most environmentally benign, renewable energy technologies available in terms of its impact on our environment. Unlike other types of home heating systems that rely on burning fossil fuels to create heat, geothermal systems do not burn anything. Instead, they rely on the constant underground temperature of 55 degrees F (12 degrees C) which is stored beneath 13 miles (21 kilometers) of the earth's surface.
Geothermal heating systems are very green and efficient, which is great if you're concerned about your carbon footprint. However, they can be pricey and require professional installation (unless you don't mind learning how to maintain and repair a geothermal system).
The Benefits Of Geothermal Heating Systems
A geothermal heating system is considered a "closed-loop" because it circulates a mixture of water and antifreeze through plastic piping buried in the ground. A pump sends this liquid through the piping to a heat exchanger which transfers the energy to the home's primary water/hydronic heating system. From there, the warm water/hydronic heating system carries heat throughout the house using conventional ductwork just like any other home heating system.
Do I Need To Hire an Expert To Install a Geothermal Heating System?
Generally speaking, geothermal systems are installed by professionals. However, if you're handy and willing to learn (and the weather isn't too harsh), you can install your geothermal system. You will need to know how to maintain and repair your system to get the warranty coverage offered by some manufacturers.
Geothermal Heating System Installation Costs
The average cost of installing a geothermal heating system varies depending on where you live, what type of ground loop configuration your home requires, and how much digging is involved. On average, expect to pay between $5,000-$20,000 to install a geothermal heating system.
What Are The Negatives Of Geothermal Heating?
Geothermal systems are slightly more expensive than traditional fossil-fuel-burning furnaces, but many people find the extra expense worth it because of their environmental benefits. Other homeowners complain about having to insulate piping below ground, which can be easily damaged if your lawnmower hits it.
Is Geothermal Heating The Right Choice For My Home?
Geothermal heating systems have been used to heat and cool homes for decades. While the initial installation costs are higher than other types of home heating systems, once a geothermal system is installed, homeowners can enjoy energy savings between 20%-70% on their heating bills. Furthermore, geothermal systems require little to no maintenance due to their lack of moving parts and the underground piping system does not take up valuable space in your yard as an oil tank would.
You should install a geothermal heating system if you are willing to pay more upfront to save money on your monthly energy bills for years to come. If the idea of having no moving parts or extra yard space taken up by an oil tank doesn't bother you, then it is the right choice for you!