Save Money with Geothermal Free energy is waiting to be used and it's only several feet underneath the surface of your backyard. What are you waiting for? A WaterFurnace geothermal system retrieves an phenomenal five units of energy for each electrical unit of energy used. Unsure of what that means to you? What you get is an economical means to condition your Port Washington home - much less than what your friends and neighbors will pay. The geothermal products we install are the most proficient equipment on the market today. So why not utilize the clean, renewable energy in your backyard and get your savings up to 70% on heating, cooling, and even hot water!