Get current pricing for Cochran, Wee Chieftan 6 Cochran Wee Chieftan 6 2000kg Per Hour Gas Fueled Boiler Ce Rated. Mk3 Burner Design Pressure = 11 Barg, Design Temp = 188 Degc, Test Pressure = 16.5 . Product Category: Process Equipment, Sub Category: Process Boilers: