What is the sense of how much tonnage is often said about gas steam generators

 
Conventional gas steam generators often talk about 100 kilograms, 0.5 tons, 1 tonnage, often there are customers who ask what awareness of these things.
Typically what steam generator manufacturers say about these kilograms and tons is not not its weight or size, but the amount of gas that comes out per hour. Simply put, it can evaporate 1 ton of water into steam per hour. Because the national boiler rules clearly stipulate that the water volume is less than 30L is exempt from inspection products. That evaporates 1 ton of water per hour is 1,000L, this also limits the gas steam generator is rarely greater than 1 ton, if the need for 4 tons of normal steam generator manufacturer's practice is to use 5 sets of 1-ton gas steam generator, with 5 units is a standby, the previous traditional steam boiler is normally used a standby, so that the cost of use is too high. Modular steam generator can reduce the standby cost. This is also a point where the steam generator gradually replaces the traditional boiler.