Save Money with Geothermal You already purchased your property - why not use the free energy source just underneath the surface of your yard? A WaterFurnace geothermal system can distribute an astounding five units of energy for every one unit of electrical energy used. Not quite sure what that means to you? What you get is an efficient means to condition your Mountain Home home - much less than what your friends and neighbors will pay. The geothermal products we install are the most proficient equipment available today. So why not use the clean, renewable energy in your backyard and grab a hold of savings up to 70% on heating, cooling, and even hot water!