Why Geothermal Use what's already there - free & renewable store of energy 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 confirming that geothermal heating and cooling is more efficient than well-known 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 provide many tax incentives and rebates that makes your investment in geothermal a reasonable choice. Still not convinced? You can talk to your neighbors - more and more people are changing 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 greener. Want to know how much you can expect to save on your energy costs with a geothermal system in Knoxville, Pioneer Heating and Air Conditioning, Inc.? Find out with our geothermal savings calculator!