The Geothermal Name to Trust in Circleville Forgive the over confidence, but that would be us: Combs Heating & Cooling! Circleville, Ohio, homeowners have been looking to us to satisfy their geothermal heating and cooling needs for years, now. We'd like to earn your confidence, as well. If you've been wanting to "go geothermal" but have put it off, you can certainly trust us on this: given today's shifting economy, there's never been a better time to discover the savings a geothermal heating and cooling system can provide. Want facts? Do a little simple math with our Geothermal Savings Calculator. Then contact Combs Heating & Cooling for the very best geothermal system installation and service in Circleville - and beyond! Oh ... and talk about trust: We install geothermal heating and cooling systems by WaterFurnace. That's a name that resonates in the geothermal industry.