Flat heater is an alternative form of heater. It has the function of heating for the flow of liquid, gaseous medium. When the heating medium through the electric heater heating chamber under pressure, by the principle of fluid thermodynamics evenly take away from the work of electric components in the huge heat generated by the heating medium temperature to the user process requirements. At the same time it has a large contact area, heating speed, heat transfer efficiency, saving space, power, heating up fast, high reliability, high heat capacity, long service life advantages. Widely used in KFC, McDonald's, Dicos, pizza stoves and other Western kitchen equipment, improve product quality performance while taking into account environmental protection and energy requirements of the times.