We're Hanover's Primary Geothermal Contractor! Hanover, Minnesota, residents have all sorts of reasons for wanting a geothermal heating and cooling system: remarkable comfort all year – no matter how extreme the weather variations smooth operating efficiency energy efficiency (They would look forever to find a more "green," more natural way to heat and cool their homes!) significant – sometimes extraordinary – savings on their energy bills noteworthy installation and maintenance from Geothermal Concept, Hanover's geothermal professionals. Find out more about what a geothermal heating and cooling system can do to benefit your family's comfort. Check out our Geothermal Savings Calculator. Then contact Geothermal Concept. We sell, install, and service WaterFurnace geothermal systems, the finest in the industry today.