Geothermal Heating & Cooling: Panora's Choice! To be perfectly accurate, let's put it this way: more and more Panora residents are coming to the same conclusion that geothermal is the most effective heating and cooling choice. And we're helping them recognize that. We're Sherman Co. LLC. And we understand all about the perks of geothermal heating and cooling. After all, we've been putting in and maintaining geothermal systems for a long time. What makes geothermal a no-brainer here? To start with, Panora is located in a region with perfect soil 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 potentiality to best effect. Think about the savings, as well. Our Geothermal Savings Calculator can give you a good idea of what they'd be for your family. Learn more. Contact Sherman Co. LLC, your Panora, Iowa geothermal authority.