... One year warranty DZL series coal fired steam/hot water boilerDZL Steam (hot water) boiler composed of the body, chain grate,Draught ... ,Blast blower,Slag extractor,Dirt catcher,Coal conveyor,Soften water,Small pump,economizer,Electrical Cabinets and so on.Body comprised the pot ... shell, smoke box, water wall tube, down tube and under ...