Glow-worm 0020020734 fan

This replacement fan is a genuine Glow-worm spare for use in Flexicom, Ultimate and British Gas boilers. The fan introduces fresh air into a boiler's combustion chamber, ensuring that gas is burnt correctly and extracting burnt gas at the end of the combustion process. Your boiler's safety parameters ensure that no gas passes through to the main burner if the fan is not functioning correctly.