3 Pass Wet Back Boiler 3 Pass Wet Back Boiler Features: Fully feeding into the furnace manual, hence fuel of different sizes & uneven shape can be burnt Minimal radiation losses as furnace in internal and surrounded by water Three pass construction helps in the very quick steam generation. Time taken from cold start to attain working pressure is very short Ideal for Process industries where round the clock uninterrupted steam required. Space requirement minimal due to rugged steel construction Very quick and easily erected and commissioned Less susceptible to poor water quality Low power consumption Being manually fed and less automation, manageable with less skilled