Why Geothermal Use what's already there - free & renewable surplus of energy 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 concluding that geothermal heating and cooling is more efficient than traditional residential systems, it only makes sense. Eco-friendly - The EPA determined that geothermal energy is the most Earth friendly heating and cooling system in the industry today. Cost-effective - State, Federal and local government and utilities offer many tax incentives 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 save you more money, smarter, and environmentally friendly. Want to know the amount of money a geothermal system in Lexington, KY can save you in energy costs? Check out our geothermal savings calculator and learn more!