Why Geothermal Use the current supply of free & renewable energy just beneath the surface It's hard to get much greener than WaterFurnace. The best alternative 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 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 on the market today. Cost-effective - State, Federal and local government and utilities provide many tax breaks and discounts that makes your investment in geothermal a reasonable 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 save you more money, wiser, and environmentally friendly. Want to know the amount of money a geothermal system in Mobile, AL can save you in energy costs? Check out our geothermal savings calculator and learn more!