... design for your reference. JDK series air heater ( HOT BLAST STOVE) is a new type of high efficient heat exchanger which can be fueled by coal ... and so on. As the equipment has such advantages as high efficiency, simple structure, easy operation, safety and credibility and ... present equipment adopting steam, oil burner or electric power. hot air furnace (HOT BLAST STOVE)coal fueled natural gas fueled