We're Frankenmuth's Primary Geothermal Contractor! Frankenmuth, Michigan, residents have all kinds of reasons for wanting a geothermal heating and cooling system: remarkable year-round comfort – 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 – often amazing – savings on their energy bills premium installation and maintenance from Kozy Home Heating & Cooling (aka AllTemp Comfort), Frankenmuth's geothermal professionals. Discover 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 Kozy Home Heating & Cooling (aka AllTemp Comfort). We sell, install, and service WaterFurnace geothermal systems, the very best in the industry today.