... boiler uses quick fitting or assembly structure. Fuel Coal, Hot Water BoilerThe 4 ~ 6t/h boiler ... heat accepting surfaces, and shall be introduced to coal saver singly arranged, and flow into the ... front furnace, rear furnace, convection pipe bundle, coal saver and chain grating, and which are assembled ... boiler, features compact in structure, the boiler's shop is of one storey arranged, convenient for ...