Save Money with Geothermal Why not maximize the free energy located just a few feet below the surface of your own property? A WaterFurnace geothermal system can use one unit of electrical energy to extract an incredible five units of energy. Not quite sure what that means to you? What you get is an efficient means to condition your West Chester home - much less than what your friends and neighbors will pay. The geothermal products we install are the most economical equipment in the industry today. So why not use the clean, renewable energy in your backyard and get your savings up to 70% on heating, cooling, and even hot water!