Save Money with Geothermal You already own the property - why not use the readily available energy source just below the surface of your yard? A WaterFurnace geothermal system can broadcast an astounding five units of energy for every one unit of electrical energy used. Still not convinced? Look at it this way. You condition your Pittsburgh home with free energy - for far less than your neighbors using standard heating and cooling means. We put in your home geothermal products that make use of 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 free during the summer!