Licking County Looks to Us for Geothermal Heating & Cooling! We're Cosby Heating and Cooling. And we're recognized throughout Licking County, Ohio, for our geothermal heating and cooling knowledge. Homeowners turn to us for ... first-class 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 reliable names - WaterFurnace advice on how to maximize the potential from their geothermal heating and cooling installation Obviously, a major reason people look to us in the first place is for the savings they can realize on their energy bills with a geothermal system. Want a look? Give our Geothermal Savings Calculator a go. Then take the next step and contact Cosby Heating and Cooling. We'll walk you through more of what makes geothermal systems the top choice for year-round heating and cooling comfort in Licking County.