semi-open air, indoor, underground or cave. Industrial boilers generally adopt indoor layout, power plant boilers mainly adopt indoor semi-dew ammonium boilers, energy-saving ring experts.
Or open-air layout.
According to the type of boiler, there are many types of boiler, such as inverted U-type, tower type, box type, T-type, U-type, N-type, L-type, D-type and A-type. D-type and A-type are used for industrial boilers, while other types are generally used for power plant boilers.