In the December 2012 edition of the Contractor Magazine, there is an excellent article about a couple building a house in Big Sky, Montana. The house was constructed using reclaimed materials and they wanted to continue the theme of low environmental impact so they chose to design and install a geothermal system. They felt there were two very good reasons to install geothermal – efficiency and cost.
Working with Energy 1 in Bozeman, Montana early on allowed them to learn about having a geothermal heating system, such as what it entails, how much space it will take up, maintenance, estimated cost savings and the estimated return on investment. They became active participants in the design and installation of the system and are projecting the return on investment to be four years, based on current propane and electrical rates. When Energy 1 modeled the project they were expecting propane savings of 60-70% overall, however after a year of heating the home with geothermal they have realized savings of 85%!
The entire article can be read at the Contractor Magazine website.