Save Money with Geothermal Why not utilize the readily available energy located just a few feet underneath the surface of your own property? A WaterFurnace geothermal system can use one unit of electrical energy to generate an amazing five units of energy. But what does that mean for you? It means you can condition your Mountain Home home for far less than your neighbors and friends. The equipment we install is the most economical geothermal products available. Homeowners can realize savings up to 70% for heating, cooling, and hot water!