Geothermal Heating & Cooling: Crystal Lake's Choice! To be perfectly honest, let's put it this way: more and more Crystal Lake residents are discovering that geothermal is the most effective heating and cooling choice. And we're helping them see that. We're Ridge Heating and Air. And we know all about the benefits of geothermal heating and cooling. After all, we've been installing and maintaining geothermal systems for years. What makes geothermal a no-brainer here? To start with, Crystal Lake is located in a region with ideal soil conditions for geothermal installation. We've also got the kind of fluctuating temperature highs and lows that let a geothermal system show off its year-round comfort capabilities to best effect. Think about the savings, as well. Our Geothermal Savings Calculator can provide you with a ball park figure of what they'd be for your family. Learn more. Contact Ridge Heating and Air, your Crystal Lake, Florida geothermal authority.