Why Geothermal Use the current supply of free & renewable energy just beneath the surface It's hard 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 concluding that geothermal heating and cooling is more efficient than well-known 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 offer many tax incentives and rebates 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 be more cost effective, smarter, and environmentally friendly. Want to know how much you can expect to save on your energy costs with a geothermal system in Central Ohio, Westin Air? Find out with our geothermal savings calculator!