Thermo dyne Engineering Systems offers Three -Pass Internal Furnace Packaged Type Boiler. Thermodyne Engineering Systems offers various types of electrode type boilers, coil type boilers, Thermic fluid heaters, solid fuel fired boiler, oil / gas fired boiler, hot water generator, hot air generator, pressure vessels etc. Three -Pass Internal Furnace Packaged Type Boiler is available with internal furnace. Three- Pass Internal Furnace Packaged Type Boiler is suitable for manual firing of coal, wood or briquettes. Three- Pass Internal Furnace Packaged Type Boiler comes with water pre-heater of shell and tube design to enhance the efficiency of the systems by recovering waste heat from flue gases going out of the boiler.