A unique design of the pre-furnace consists of lateral wall made of finned tube connected to the boiler body through headers. Salient Features: Complete gas-tight construction. Greater absorption of radiant heat. Fast water circulation resulting in accelerated start up and better boiler response to load fluctuations. Designed to give full load efficiency upto 80%. Optional FBC System for Capacity above 5000 kg./hr. for Automatic Firing. Capacity:1000 kg./hr. to 15000 kg./hr. Pressure:10kg./cm2 to 35 kg./cm2 Fuel:Coal / Wood / Lignite / Paddy Husk / Petcock / Saw Dust / Bagasse / Palm Oil Extracts / etc.