Knoxville Looks to Us for Geothermal Heating & Cooling! We're A&L Heating and Air, LLC. And we're recognized throughout Knoxville, Tennessee, for our geothermal heating and cooling expertise. People look to us for ... superior geothermal system installation and service experienced, highly trained personnel who know every detail of geothermal heating and cooling - and know how to help you understand geothermal systems from one of the industry's most established names - WaterFurnace recommendation on how to maximize the potential from their geothermal heating and cooling installation Obviously, a significant reason people turn to us to begin with is for the savings they can appreciate on their energy bills with a geothermal system. Want a snap shot? Give our Geothermal Savings Calculator a go. Then push forward with the next step and contact A&L Heating and Air, LLC. We'll show you more of what makes geothermal systems the premium choice for year-round heating and cooling comfort in Knoxville.