Why Geothermal Use what's already there - free & renewable supply of energy Geothermal energy is the better way to heat and cool your home or business - it's efficient, cost-effective, and environmentally friendly. It's hard to get much greener than with WaterFurnace. Just ask the EPA - they determined geothermal energy is the most environmentally conscious heating and cooling system. Or ask the U.S. National Renewable Energy Laboratory - they also confirmed that geothermal energy is more economical and inexpensive than conventional residential systems. Or ask the federal, state, and local governments and utilities - they're offering many rebates and tax incentives that will go hand in hand with your investment in geothermal. Or, most importantly, 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 depend on the type of old system your new geothermal is replacing. However, geothermal will always be the best option, more cost effective and environmentally friendly. Want to know how much a geothermal system in Central Minnesota, MN can save you in energy costs? Check out our geothermal savings calculator and learn more!