Geothermal Retrofits More and more residents in East Tennessee are discovering just how great WaterFurnace geothermal systems are for retrofit or replacement applications. The benefits are plain to see: WaterFurnace geothermal systems are counted as one of the most economical, energy-saving, eco-friendly heating and cooling solutions on the market today. Nearly all geothermal units are a breeze 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 unacceptable. That's because, with geothermal, there's no combustion and therefore no need to vent exhaust gases. Geothermal technology is optimal for in-floor radiant heating, because hot water radiates through pipes underneath your floors to heat your rooms. If you're a East Tennessee resident looking to retrofit or replace your current heating and cooling system, contact us, the experts Geo Pros of Knoxville. We'll show you all the advantages of a WaterFurnace geothermal retrofit or replacement.