Why Geothermal Free & renewable source of energy - It's already there just waiting to be used It's hard 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 determining that geothermal heating and cooling is more efficient than well-known 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 breaks and rebates that makes your investment in geothermal a wise choice. Still not convinced? You can ask 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 be more cost effective, wiser, and greener. By how much can a geothermal system in the Southeast Missouri, MO area save you in energy costs? Use our geothermal savings calculator to discover for yourself!