Geothermal Retrofits More and more residents in Rochester are learning just how great WaterFurnace geothermal systems are for retrofit or replacement applications. The advantages are clear: WaterFurnace geothermal systems are counted as one of 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 unfitting. That's because, with geothermal, there's no combustion and therefore no need to vent exhaust gases. Geothermal technology is perfect for in-floor radiant heating, because hot water radiates throughout pipes under your floors to heat your rooms. If you're a Rochester resident looking to retrofit or replace your current heating and cooling system, contact us, the experts Gast Heating & Cooling Inc.. We'll walk you through all the advantages of a WaterFurnace geothermal retrofit or replacement.