The Geothermal Name to Trust in Oberlin Forgive the over confidence, but that would be us: Sisler Heating & Cooling, Inc.! Oberlin, Ohio, residents have been turning to us to satisfy their geothermal heating and cooling needs for years, now. We'd like to earn your assurance, 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 learn more about the savings a geothermal heating and cooling system can offer. Want facts? Do a little simple math with our Geothermal Savings Calculator. Then contact Sisler Heating & Cooling, Inc. for the finest geothermal system installation and service in Oberlin - and beyond! Oh ... and talk about trust: We install geothermal heating and cooling systems by WaterFurnace. That's a name that resounds in the geothermal industry.