According to the pressure, it is divided into low-pressure boilers, medium-pressure boilers, low-pressure boilers, tea stoves, etc.
According to the supplied kinetic energy, it is divided into hot water boiler and steam boiler.
According to the steam state, it is divided into saturated steam and superheated steam (used for power generation).
Gas?
Also divided into gas storage tanks (cabinets) (city gas)
Gas is not liquefied gas.
Natural gas is neither artificial gas nor liquefied gas.
What exactly do you want to know?
Boilers and pressures with different specifications (tonnage) capacity; The volume and pressure explosion equivalent of the gas storage tank are different;
According to the specific explosion mode of the equipment:
Gas-fired boilers will explode in the furnace; Boiler overpressure explosion (high temperature water, steam);
Gas leakage and explosion (mixed air explosion), or tank explosion caused by tempering (very dangerous), and gas may suffocate;
The explosion instantly releases pressure, compresses air and produces shock waves.
Specific problem specific calculation.