We're Southern Ohio's Primary Geothermal Contractor! Southern Ohio, Ohio, homeowners have all kinds of reasons for desiring a geothermal heating and cooling system: exceptional comfort all year – no matter how crazy the weather variations smooth operating performance energy performance (They’d be hard-pressed to find a more "green," more natural way to heat and cool their homes!) significant – often extraordinary – savings on their energy bills superior installation and service from Daniel's HVAC, LLC, Southern Ohio's geothermal experts. 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 Daniel's HVAC, LLC. We sell, install, and service WaterFurnace geothermal systems, the finest in the industry today.