Geothermal Frequently Asked Questions

What’s with the loops?

Loops are the pipes buried underneath the ground and transferring liquid to your heat pump, where it’s used for heating or cooling. There are two basic loop designs common in geothermal systems. An open loop involves pumping ground water from a pond or a well, running it through the heat pump and then disposing of it or returning to the source. A closed loop has no discharge mechanism: it recirculates the same antifreeze-type liquid over and over, running it through the heat pump then back under the ground.

Should I choose an open loop or a closed loop system?

We generally recommend our clients to go with the closed loop design. The initial installation cost might be higher, but this setup will have fewer problems in the future and is more compact. When you opt for an open loop system, you have to find (or create) a body of water large enough to support your home’s energy needs and cover the costs of operating a well pump. Additionally, water quality might become a big issue as it directly affects the lifespan of the pipes.

Which brand of geothermal system should I buy?

At Grove Heating and Cooling, we can install any system per your request, but when customers ask for our advice, we recommend geothermal comfort systems by Climate Master. We have installed them in many Maryland homes and can say with confidence that they are built to last. We’ve only heard positive feedback about this brand.

Why should I trust Grove HVAC with my geothermal system installation?

We saw the value in and started installing geothermal systems even before EPA recognized them as one of the most efficient and eco-friendly methods of heating and cooling back in 1990s. With more than 30 years of experience in installation of geothermal systems, we are more knowledgeable than many of our competitors who just recently embraced this trend. Our installers have this process down to a tee and are happy to spend the time to explain all ins and outs to you as well to ensure you know how your new system works and how to take the best care of it.