Geothermal Retrofits More and more residents in Lexington are realizing just how great WaterFurnace geothermal systems are for retrofit or replacement applications. The gains are plain to see: WaterFurnace geothermal systems are among the most efficient, energy-conserving, eco-friendly heating and cooling solutions in the industry today. Nearly all geothermal units are simple to to place in your home - particularly those replacing another forced-air system. Geothermal systems can be installed in areas where fossil fuel furnaces are unfitting. That's because, with geothermal, there's no combustion and thus no need to vent exhaust gases. Geothermal technology is perfect for in-floor radiant heating, because hot water radiates through pipes under your floors to heat your rooms. If you're a Lexington resident looking to retrofit or replace your current heating and cooling system, contact us, the experts Arronco Comfort Air, Inc.. We'll walk you through all the advantages of a WaterFurnace geothermal retrofit or replacement.