Geothermal Heating & Cooling: Fulton's Choice! To be perfectly accurate, let's put it this way: more and more Fulton residents are coming to the same conclusion that geothermal is the most effective heating and cooling choice. And we're helping them realize that. We're Gast Heating & Cooling Inc.. And we know all about the perks of geothermal heating and cooling. After all, we've been putting in and servicing geothermal systems for years. What makes geothermal a no-brainer here? To start with, Fulton is situated in a region with perfect ground conditions for geothermal installation. We've also got the kind of fluctuating temperature extremes that let a geothermal system display its year-round comfort potentiality to best effect. Consider the savings, as well. Our Geothermal Savings Calculator can give you a ball park figure of what they'd be for your family. Learn more. Contact Gast Heating & Cooling Inc., your Fulton, Indiana geothermal authority.