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