We're the Geothermal Source in Spartanburg County! Spartanburg County homeowners in the know look to Bullman Heating & Air for all their geothermal heating and cooling needs. They count on us to provide not only the proper installation and service but also the experience to help them maximize the potential from their geothermal systems. Considering a geothermal system of your own? Give our nifty little Geothermal Savings Calculator a try. Just fill-in your data and marvel at the results. Then, contact us, the Spartanburg County, North Carolina, geothermal professionals at Bullman Heating & Air.