Geothermal Heating & Cooling: Nappanee's Choice! To be completely honest, let's put it this way: more and more Nappanee residents are discovering that geothermal is the smarter heating and cooling choice. And we're helping them see that. We're Crystal Valley Comfort. And we know all about the benefits of geothermal heating and cooling. After all, we've been putting in and maintaining geothermal systems for years. What makes geothermal a no-brainer here? For starters, Nappanee is located in a region with ideal ground conditions for geothermal installation. We've also got the kind of seasonal temperature extremes that let a geothermal system show off its year-round comfort capabilities to best effect. Think about the savings, too. Our Geothermal Savings Calculator can give you a ball park figure of what they'd be for your family. Learn more. Contact Crystal Valley Comfort, your Nappanee, Indiana geothermal authority.