Replace Existing System Has your conventional furnace seen better days? Thinking about replacing you current inefficient system before it costs you more than you bargained for? A smart choice when considering replacing an old or inefficient furnace in Charleston, South Carolina is to opt for a WaterFurnace geothermal products. With no combustion, there isn't any need to exhaust waste gas. Our easy to install units only need an electrical connection you already have. So, our equipment can be installed just about anywhere. Since most homes already have ductwork installed , your home is ready to offer the comfort of geothermal conditioning- if not, we can simply 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 offer a unit that is capable of hot water heating for even more savings. WaterFurnace - helping you save the environment and reduce your home's conditioning costs at the same time. Check out the savings calculator to see how much you can save by switching to a geothermal system!