Boiler type Šukoplam BIOS with power range 30-65kW is constructed and manufactured as a boiler for combustion of baled biomass for the needs of domestic heating. Except for the baled biomass boiler can also combust other chunk solid fuel. Because of the specificity (high content of fly ash) of combustion of baled biomass (straw, etc...) boiler is equipped with sediment chamber and exhaust fumes fan.

                Boiler is constructed as „three drafted“ with one water cooled chamber and flue pipes which means that products of combustion pass water area in three occasions maximizing the heat exchange. First heat exchange is in boiler firebox, mostly by methods of irradiation, through large surface area of boiler firebox, second heat exchange is in the water cooled chamber of the boiler mostly by methods of irradiation and convection, and the third heat exchange is in flue pipes before the flue gasses exit the boiler mostly by methods of conduction and convection. Boiler body is well insulated with mineral wool and boiler sheeting is protected with painting or powder coating processes.

                Boiler doors are constructed in a way that the boiler can recive baled biomass of dimension 600x550x1000mm

                Boiler is ment for production of hot water in operating mode 110/90ºC and 90/70ºC with maximum allowed work pressure of 2,5bar.

                Because of the use of exhaust fumes fan, turbulators are installed into flue pipes of the boiler so that the efficiency of the boiler can be higher. Work of the exhaust fumes fan and also maintaining the desired water temperature in the boiler is regulated by the boiler automatic controller.

                Regulation of air flow needed for combustion is done with draft regulator which moves  the flap on the bottom boiler door and by doing so increases or decreases the amount of air needed for the combustion, while boiler power regulation is done by changing the RPM on the exhaust fumes fan.

                Protection of boiler from increased pressure is done by installing the safety valve on the appropriate place on the boiler, while protection of the boiler from increased temperatures is done by installing the safety heat exchanger which,if the need arises, cools down the boiler.