... interlock protection with combustion-supporting blower, then can enter into the next program.1,Choose biogas burner for biogas boiler, the ... , also can blowout the furnace when flameout.3),The burner can regulated automatically according to the pressure, overpressure protection ... burning system.1,Combustion air supply systemComposed of combustion air blower, motor-driven adjustable air valve, etc.2,Gas ...