... cast-iron stoker, big furnace design activities, manual, gleaming adaptability, coal, fuel wood, wood scraps, etc. Can be used as fuel ... Coal IIHeat volume(kj/kg)18757Fuel Consumption(Kg/h)17033033065665698098016201620Heat Efficiency (%)707272727281818181 Boiler pictures :Chain grate ,bars ,links ,drive bars : 2t Coal-fired ...