Vaillant 0020195457 fan plus combus chamber cover

Supplied with a compustion chamber cover, this Vaillant replacement fan is suitable for use in domestic EcoFit Pure, EcoFit Sustain and Home 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.