We're Rexburg's Primary Geothermal Contractor! Rexburg, Idaho, homeowners have all kinds of reasons for wanting a geothermal heating and cooling system: phenomenal comfort all year – no matter how crazy the seasonal variations stable operating performance energy performance (They would look forever to find a more "green," more natural way to heat and cool their homes!) significant – sometimes outstanding – savings on their energy bills premium installation and maintenance from Conan Heating and Geothermal, Rexburg's geothermal professionals. Discover more about what a geothermal heating and cooling system can do to increase your family's comfort. Check out our Geothermal Savings Calculator. Then contact Conan Heating and Geothermal. We sell, install, and service WaterFurnace geothermal systems, the finest available today.