ABOUT DALE SUPPLY COMPANY Dale Supply Company is Middle Tennessee's oldest independently owned HVAC distributor, founded in 1953. Still locally owned and managed, we take care of customers like no other distributor. You're not an account number to us; you're a valued customer with a face and a name that we know and remember. That's why we provide everything you could possibly need in HVAC products and training plus innovative dealer development programs to help grow your business and improve your bottom line. To meet consumer interest in the environment, we're helping our dealers go green with high-efficiency offerings like air source products up to 24.5 SEER, 97.1 AFUE gas furnaces and geothermal products up to 30 EER and 4.8 COP.