Replace Existing System Has your worn-out furnace seen better days? It's time to start thinking about updating your aging furnace before it stops ticking. Instead of another conventional furnace to heat your Green Bay home, a great alternative is a WaterFurnace geothermal products. It's a wise move compared to the inefficient fossil-fueled furnaces on the market. No combustion means, no combustible gasses and venting is needed. Plus, our units usually use the existing electrical connection you already have to provide comfortable conditioning to your WI home. Since most homes already possess ductwork , your home is ready to give you the comfort of geothermal heating and cooling- if not, we can easily install the required ductwork so you can experience geothermal to its fullest extent. Consider radiant in-floor heating as an added option. Just think of it - no more freezing floors all winter long. We also have an option to add a unit that is capable of hot water heating for even more savings. WaterFurnace - helping you save on home conditioning costs and the environment at the same time. Check out the savings calculator to see how much you can save by switching to a geothermal system!