Why Geothermal Free & renewable source of energy - It's already there begging to be used It's difficult to get much greener than WaterFurnace. A smarter alternative to heat and cool your home or business, geothermal is... Efficient - With the U.S. National Renewable Energy Laboratory determining that geothermal heating and cooling is more efficient than conventional residential systems, it only makes sense. Eco-friendly - The EPA determined that geothermal energy is the most eco-friendly heating and cooling system in the industry today. Cost-effective - State, Federal and local government and utilities provide many tax breaks and reductions that makes your investment in geothermal a reasonable choice. Still not satisfied? You can ask your neighbors - more and more people are switching to geothermal and love it! Energy and cost savings will vary by region and the type of system geothermal is replacing, but geothermal will always save you more money, smarter, and greener. How much can a geothermal system in the Columbus, OH area save you in energy costs? Use our geothermal savings calculator to find out!