Boiler room often refers to the explosion area, not the explosion vent. The explosion venting area of the boiler room should not be less than 10% of the boiler room area. Lightweight roofs and glass windows can be used as explosion-proof areas. Explosion-proof glass windows cannot be opened on the boiler room wall near the main traffic roads.
An explosion-proof door is arranged on the flue of the oil-fired boiler to prevent the fuel vapor in the flue from accumulating and exploding when the oil-fired boiler is started. Other buildings with explosion danger should also ensure the explosion area.