Replace Existing System Is your worn out furnace or heat pump about to die? Or do you just want to get rid of your inefficient equipment before it breaks your piggy bank? WaterFurnace geothermal products provide the ideal replacement of older or inefficient equipment in the Knoxville, TN area. Most units are easy to install and can be installed in areas unsuitable for fossil fuel furnaces. There is no combustion or need to vent exhaust gasses which means our equipment can be installed virtually anywhere. Nearly all homes can instantly enjoy the full effect one of our geothermal systems can provide. You do need to have ductwork previously installed. If not, we can easily solve this problem by having the required ductwork installed by our professional staff. Other options to consider are... Radiant in-floor heating - Gone are the mornings of walking on freezing tile Water heating - Adding this great option will heat your water year-round Just think of it - comfortable heating, warm floors, and hot water; all while reducing your heating and cooling cost while preserving the environment. Check out the savings calculator to see how much you can save by switching to a geothermal system!