Save Money with Geothermal Why not use the free 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 incredible five units of energy. Still not convinced? Look at it this way. You condition your Lansing home with free energy - for far less than your neighbors using conventional heating and cooling methods. We put in your home geothermal products that utilize that free, clean energy lying in your backyard. Get your savings up to 70% on heating and cooling your home - you can even heat your water for no cost during the summer!