We're the Geothermal Source in Richland County! Richland County residents in the know look to Cosby Heating and Cooling for all their geothermal heating and cooling needs. They place their confidence in us to give not only the correct installation and service but also the experience to help them maximize the potential from their geothermal systems. Considering a geothermal system of your own? Give our nifty little Geothermal Savings Calculator a whirl. Just fill-in your data and stand in awe of the results. Then, contact us, the Richland County, Ohio, geothermal professionals at Cosby Heating and Cooling.