Why Geothermal Free & renewable source of energy - It's already there begging to be used It's not easy to get much greener than WaterFurnace. The best method to heat and cool your home or business, geothermal is... Efficient - With the U.S. National Renewable Energy Laboratory confirming that geothermal heating and cooling is more efficient than traditional residential systems, it only makes sense. Environmentally friendly - The EPA determined that geothermal energy is the most Earth friendly heating and cooling system on the market today. Cost-effective - State, Federal and local government and utilities offer many tax breaks and reductions that makes your investment in geothermal a well-informed choice. Still not convinced? 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, wiser, and environmentally friendly. By using our savings calculator, you can find out how much a geothermal system in the Greensburg, IN will reduce your energy costs.