Geothermal Retrofits More and more residents in Chillicothe are discovering just how great WaterFurnace geothermal systems are for retrofit or replacement applications. The benefits are clear: WaterFurnace geothermal systems are among the most economical, energy-saving, eco-friendly heating and cooling solutions in the industry today. Most geothermal units are a breeze to put in - particularly those replacing another forced-air system. Geothermal systems can be installed in areas where fossil fuel furnaces are unacceptable. That's because, with geothermal, there isn't any combustion and thus no need to vent exhaust gases. Geothermal technology is ideal for in-floor radiant heating, because hot water circulates through pipes below your floors to heat your rooms. If you're a Chillicothe resident looking to retrofit or replace your current heating and cooling system, contact us, the experts Combs Heating & Cooling. We'll walk you through all the advantages of a WaterFurnace geothermal retrofit or replacement.