We're Mississippi State's Primary Geothermal Contractor! Mississippi State, Mississippi, homeowners have all kinds of reasons for wanting a geothermal heating and cooling system: exceptional comfort all year – no matter how extreme the weather variations stable operating efficiency energy performance (They would look forever to find a more "green," more natural way to heat and cool their homes!) significant – often outstanding – savings on their energy bills premium installation and service from Mid South Air Conditioning, Inc., Mississippi State's geothermal experts. Learn 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 Mid South Air Conditioning, Inc.. We sell, install, and service WaterFurnace geothermal systems, the very best in the industry today.