Geothermal Retrofits More and more residents in Pittsburgh are learning just how great WaterFurnace geothermal systems are for retrofit or replacement applications. The gains are clear: WaterFurnace geothermal systems are among the most dynamic, energy-conserving, environmentally friendly heating and cooling solutions available. Most geothermal units are simple to install - 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 isn't any combustion and thus no need to vent exhaust gases. Geothermal technology is ideal for in-floor radiant heating, because heated water radiates throughout pipes under your floors to heat your rooms. If you're a Pittsburgh resident looking to retrofit or replace your current heating and cooling system, contact us, the experts E & D Company HVAC LLC. We'll walk you through all the advantages of a WaterFurnace geothermal retrofit or replacement.