Why Geothermal Free & renewable source of energy - It's already there just waiting to be used 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 confirmed geothermal energy is the most environmentally friendly heating and cooling system. Or ask the U.S. National Renewable Energy Laboratory - they also confirmed that geothermal energy is more efficient and inexpensive than classic residential systems. Or ask the federal, state, and local governments and utilities - they're providing many rebates and tax incentives that will only add to your investment in geothermal. Or, most importantly, 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 depend on the type of old system your new geothermal is replacing. However, geothermal will always be smarter, cheaper and greener. By how much can a geothermal system in the Alaska, Alaska area save you in energy costs? Use our geothermal savings calculator to discover for yourself!