Three Pass, High Efficiency Boiler. Brownian Motion Furnace and Fluidised Bed (FBC) in one Boiler! Choice of Fuel Feeding Systems - In Bed for Coal, Lignite, Saw Dust. - Over Bed for Rice Husk, Petcoke. Boiler is capable of burning a wide variety of Biomass such as wood, bagasse, rice husk, saw dusk & various straws. Microprocessor Controlled Fuel Feeder Large water cooled, safe furnace Packaged Concept, No welding or Expansion at Installation site. Large water and steam space Ultra Long Life Fluidising Nozzles.