We're Delaware's Primary Geothermal Contractor! Delaware, Ohio, homeowners have all kinds of reasons for desiring a geothermal heating and cooling system: exceptional year-round comfort – no matter how extreme the seasonal variations smooth 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 superior installation and maintenance from Patriot Air Comfort Systems, Delaware's geothermal professionals. Learn more about what a geothermal heating and cooling system can do to benefit your family's comfort. Look at our Geothermal Savings Calculator. Then contact Patriot Air Comfort Systems. We sell, install, and maintain WaterFurnace geothermal systems, the very best available today.