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 pull out an extraordinary five units of energy. Still not convinced? Look at it this way. You condition your Seattle home with free energy - for far less than your neighbors using standard heating and cooling procedures. We install geothermal products that put to use 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!