Why Geothermal Use the existing supply of free & renewable energy just beneath the surface It's hard to get much greener than WaterFurnace. The best 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 discounts that makes your investment in geothermal a reasonable choice. Still not convinced? You can talk to 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, wiser, and environmentally friendly. Want to know how much you can expect to save on your energy costs with a geothermal system in Northern Virginia, Renewable Energy Solutions? Find out with our geothermal savings calculator!