 TULSA, Okla., March 09, 2021 GLOBE NEWSWIRE -- AAON, Inc. NASDAQ: AAON today announced a price increase of 4 on all AAON HVAC equipment. This price increase is a direct result of increased raw material and component costs, including stainless steel, galvanized steel and copper, which are up 30 to 50 compared to last year. The price increase is effective June 1st, 2021. 