The most significant feature of this design is to possess all the advantages of pressurized fire tube boilers whitin "small body", "high efficiency", "long durability life" and "complete & perfect burning" which minimizes the air pollution. Besides the pressure in its fire tube stays at acceptable levels. Which enables the butner fire eassily and work without any trouble.

ISSY-STY type boilers are steel welded construction any cylindirical design. They are insulated with glass wool and covered with prismatic galvanised steel. They have a very easy maintenance and service. They are manufactured according to TSE (Turkish standart) or DIN (German Standart) and for 3 to 10 bars. There is a moderate pressure in the fire tube therefore it is recomended to use high pressure burners. (2800 rpm) with long nozzle, preferablytwo stage firing mode it is recomended to use turbulator in smoke tubes.