Save Money with Geothermal Free energy is waiting to be used and it's only several feet beneath the surface of your backyard. What are you waiting for? A WaterFurnace geothermal system reclaims an incredible five units of energy for each electrical unit of energy used. Still not convinced? Look at it this way. You condition your Cape Cod home with free energy - for far less than your neighbors using conventional heating and cooling procedures. We install geothermal products that make use of that free, clean energy lying in your backyard. Realize savings up to 70% on heating and cooling your home - you can even heat your water for free during the summer!