Asheville Geothermal Heating & Cooling Contractor In Asheville, North Carolina, the geothermal heating and cooling contractor to call is Bullman Heating & Air. Our geothermal knowledge is second to none. And we provide the best products available in Asheville - or anywhere else, for that matter: WaterFurnace geothermal heating and cooling systems! Try our Geothermal Savings Calculator. It'll show you why so many homeowners are going geothermal. The monthly savings are big! We can give you plenty of other good reasons, too. And when you’re ready install? We'll see to it that your WaterFurnace geothermal heating and cooling system is installed - and serviced – right! Contact Bullman Heating & Air today.