Save Money with Geothermal Free energy is waiting to be used and it's only several feet below the surface of your backyard. What are you waiting for? A WaterFurnace geothermal system reclaims an remarkable five units of energy for each electrical unit of energy used. Still not convinced? Look at it this way. You condition your Northern Virginia home with free energy - for far less than your neighbors using conventional heating and cooling procedures. We install geothermal products that utilize that free, clean energy lying in your backyard. Grab a hold of savings up to 70% on heating and cooling your home - you can even heat your water for no cost during the summer!