Burner Control uses a thermocouple to supply up to 30 mV of power to the safety shutoff pilot solenoid in the gas valve. Burner control systems of various types are applied to all boilers to assist the operator in the starting & stopping of burners and fuel equipment & prevent hazardous furnace conditions. The burner function is to prevent explosions in the furnace and in equipment such as pulverizers, where such explosions would threaten the safety of personnel and cause major damage to the boiler and associated equipment & buildings. The various types of burner controls are manual control, remote manual sequence control and automatic sequence control.