Symptoms of incomplete fuel include smoke, yellow flame, flame extinguishing and soot and blackened boiler pipes. To ensure the optimization of the combustion process, it is better to adjust the engine of the engine room boilers annually. In a boiler that uses natural gas, usually, about % of the extra air is suitable to ensure complete combustion and achieve maximum efficiency, which corresponds to to % of excess oxygen. Activation with more than % excess air is not desirable and may reduce efficiency and further diffusion. Therefore, it is preferable to keep the amount of excess air in the desired range throughout the ignition range. The desired limit can be achieved by using burner controls, which include parallel placement of controls, cross-limiting controls, and oxygen conduction controls. These types of controls are better options than traditional mechanical jackshaft controls. The following is a brief description of the types of burner controls:

Ventilation gas savings provide the best heat recovery opportunity. In boiler chimneys, there is a need for heat exchangers to transfer heat from the flue gas to the return water or to feed the boiler or combustion air. They even work well in boilers and operate at relatively low flue gas temperatures. There is a large room to recover some of the flue gas heat, which rises if the flue is not recovered. Saving gas from the chimney usually increases the overall efficiency of the boiler by to percent.

This type of pot or boiler is made up of connecting cast iron pieces called fins. Due to the ability to assemble and disassemble the cast iron boiler, it can be used in spaces where it is not possible to use a steel and integrated boiler. In fact, cast iron boilers are assembled and installed in the engine room. types of sections are used in the construction of each capacity of cast iron boilers, which are as follows.

All combustion equipment must be operated properly to prevent hazardous conditions, catastrophic damage, and human and construction damage. The main reason for the explosion of engine room boilers is the combustion of flammable gases that have accumulated inside the engine room boilers. This can happen for a variety of reasons, such as fuel, air, or the combustion process is interrupted for any reason, the flame goes out, and flammable gases accumulate that cause re-burning.

Engine room boilers have capabilities that have made them the main and common part of buildings. Boilers have a long life, and boiler efficiencies can achieve efficiencies of % and above, provide effective methods for heating buildings, and require very little or zero pumping energy in steam systems. But fuel can be significant, and regular maintenance is required by the facility engineer, and if it is delayed, the cost of repairing the engine room can be high.