Why Geothermal Use the existing surplus of free & renewable energy just beneath the surface Geothermal energy is the better way to heat and cool your home or business - it's efficient, saves you money, and environmentally friendly. It's hard to get much greener than with WaterFurnace. Just ask the EPA — they concluded geothermal energy is the most environmentally friendly heating and cooling system. Or ask the U.S. National Renewable Energy Laboratory - they also confirmed that geothermal energy is more economical and inexpensive than conventional residential systems. Or ask the federal, state, and local governments and utilities - they're offering many rebates and tax incentives that will go hand in hand with your investment in geothermal. Or, most importantly, 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 depend on the type of old system your new geothermal is replacing. However, geothermal will always be smarter, cheaper and eco-friendly. By using our savings calculator, you can find out how much a geothermal system in the Omaha, NE will reduce your energy costs.