Used 200PSI Watertube boiler. Mfg Sellers Engineering. Model 50HP Model 77 Commodore. Natural Gas. 1726 Lbs/hr Steam. 1.674 MM BTU Output. Controls. Serial #104930. National Board #12389. Ohio Boiler #294307. With Sellers Model RD-217-2.515G-2.119E Boiler feed system. Built 2015.