... service 3.One year warranty DZL series coal fired steam/hot water boilerDZL Steam (hot water) boiler composed of the body, chain grate,Draught fan, ... Blast blower,Slag extractor,Dirt catcher,Coal conveyor,Soften water, ... capacity (t/h)Operation pressure (Mpa)nominal steam (°C)nominal feed water (°C)Heating area(m2)active area of the ...