We're Knoxville's Primary Geothermal Contractor! Knoxville, Tennessee, residents have all sorts of reasons for wanting a geothermal heating and cooling system: exceptional year-round comfort – no matter how crazy the seasonal variations smooth operating efficiency energy performance (They’d be hard-pressed to find a more "green," more natural way to heat and cool their homes!) significant – sometimes amazing – savings on their energy bills superior installation and maintenance from Pioneer Heating and Air Conditioning, Inc., Knoxville's geothermal professionals. Discover more about what a geothermal heating and cooling system can do to increase your family's comfort. Check out our Geothermal Savings Calculator. Then contact Pioneer Heating and Air Conditioning, Inc.. We sell, install, and service WaterFurnace geothermal systems, the very best available today.