Steam generator also called steam heat source machine (commonly known as boiler) is the use of fuel or other energy sources of thermal energy to heat water into hot water or steam mechanical equipment. The original meaning of the pot is a container of water heated over a fire, and the furnace is the place where the fuel is burned, and the boiler includes two major parts, the pot and the furnace.
Steam generators are mainly classified according to the fuel, which can be divided into electromagnetic steam generator, electric steam generator, oil steam generator, gas steam generator and so on.