Trouble Choosing a Home Geothermal Energy System

| 8/13/2019 11:26:00 AM


Geothermal heating and cooling systems have been a topic of conversation for many of my high-performance building projects over the years. I recently came across a project that I thought might be a good fit for geothermal.

This article does not cover the difference in the heating systems. The point of this article is for the reader, to recognize not only the breakdown in information between the leading companies in our area, but also to recognize that we wanted to find the most efficient system for this project. A solid long-term choice would be one that examined what technology currently exists and if that system can be upgraded to be more efficient in the future.

This particular project was a remodel that included an addition. The project sounded like it may be a good fit for a geothermal heating and cooling system, so I inquired about who the builder was. The homeowners replied that they might be looking for a builder and I said that I was interested in being involved. I was very interested in seeing how a geothermal system may work in this project and was excited to be selected as the builder of this project.

Exploring Options for Home Heating

As the project progressed, the homeowners and I decided that it was time to meet with a heating contractor to discuss which heating system would be a best fit for the project. I have always been a fan of reviewing options, so the first heating company representative showed us multiple systems, which included: upgrading the existing propane-fired forced-air furnace with air conditioning, a mini-split systems, an open-loop geothermal system and a closed-loop geothermal system.

I have learned throughout the years that there is not a magic one-size-fits-all solution to heating and cooling in a home. My hope here was that geothermal was going to be the best value versus performance for this project. The homeowners had heard that geothermal was the most efficient heating and cooling system available, and we were going to rely on the heating and cooling company to show us the performance data to see if that was correct or not.

8/24/2019 11:25:36 PM

I have heated my house with an open loop geothermal system since the mid 1980's and I have never encountered a situation where it could not keep the house warm. Also the water from my well is hard and untreated. I live in southeastern Michigan. Maybe I am just lucky.

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