Used 150000 lb/hr D-Type Watertube boiler. Manufactured by Cleaver Brooks. Model CW-NB-500D-110. Rated 150,000 lb/hr @ 600 PSIG. 7680 sq ft heating surface. Controls. National Board #5004. Serial #CW-4627. 22" ID X 37'4" L. Boiler tubes 2" OD, 0.135 MW thickness. Waterwall Headers (2) FR 3.826" ID Pipe, (1) BR 3.826 ID Pipe, and (1) AD 2.9" ID Pipe. Waterwall tubes 2" OD. National Board #5004. Serial #CW-4627. 14.3MM BTU Economasters economizer. Max rated working pressure 750 PSI @700F. Heating surface 13149 sq ft. National Board #2809. Serial #20020. National Board #2809. Serial #20020. 350HP Industrial Burner Model NCB-290-G6B-003-S09-000. Fuel type #1 Natural Gas. Fuel type #2 Light Oil #2. Serial #N20382. Built 2020.