(1) when the boiler ignites and heats up, it should pay close attention to whether the change of the internal water level is normal, so as to avoid leakage and make the boiler lack of water.

(2) if there is a economizer on the boiler, the bypass flue or the recirculation valve through the water tank should be opened for the coal-fired water heater.In addition, the outlet water temperature of economizer should be lower than the saturation temperature.

(3) if there is a superheater in the boiler, then all the outlet water traps should be opened to prevent the superheater from overheating and damage.

(4) in the boost, should control the boiler combustion, to maintain stability.

(5) during the process of temperature rise and pressure boost, the operation shall be carried out in strict accordance with the provisions and requirements, and the boiler operation shall be observed and recorded at any time.