Geothermal Retrofits More and more residents in Jasper are realizing just how great WaterFurnace geothermal systems are for retrofit or replacement applications. The gains are easy to see: WaterFurnace geothermal systems are among the most efficient, energy-saving, environmentally friendly heating and cooling solutions available. Most geothermal units are a breeze to install - 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 thus no need to vent exhaust gases. Geothermal technology is perfect for in-floor radiant heating, because heated water circulates through pipes underneath your floors to heat your rooms. If you're a Jasper resident looking to retrofit or replace your current heating and cooling system, contact us, the experts Hulsman Refrigeration, Inc.. We'll show you all the advantages of a WaterFurnace geothermal retrofit or replacement.