Clay Center Looks to Us for Its Geothermal Needs We’re Carlson Heating & AC, LLC, the recommended "go-to" team for Clay Center, Kansas's geothermal heating and cooling. Clay Center residents look to us for ... quality geothermal heating and cooling systems the best installation and service from highly skilled, highly trained professionals sound advice on how to maximize the potential of their geothermal installations With a down economy, there's never been a better time to put a geothermal system to work for you. And we're the ones to do it in Clay Center, Kansas. Contact Carlson Heating & AC, LLC today. Want to see just how big "going geothermal" could save you on your energy bills? Spend a moment or two with our simple Geothermal Savings Calculator.