We're Summit County's Primary Geothermal Contractor! Summit County, Ohio, 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 efficiency (They’d be hard-pressed to find a more "green," more natural way to heat and cool their homes!) significant – often outstanding – savings on their energy bills noteworthy installation and maintenance from Sisler Heating & Cooling, Inc., Summit County's geothermal professionals. Discover 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 Sisler Heating & Cooling, Inc.. We sell, install, and maintain WaterFurnace geothermal systems, the finest available today.