Worcester Bosch Flue Blanking Kit 12/19 Rear 77161921220

The Worcester Bosch 77161921220 is a rear flue blanking kit used on Worcester oil-fired boilers. It closes off the flue outlet that is not in use when the appliance is configured for an alternative flue route, keeping the casing sealed at that point. The kit belongs to the Boilerhouse and Danesmoor appliance families and is listed by the manufacturer as a flue assembly component.

• Corrosion, pitting or distortion visible on the blanking plate or its fixings
• Soot staining or discolouration around the flue outlet that has been blanked off
• Draughts, condensation or water ingress at the blanking position
• A failed or perished seal allowing flue products to escape at the joint
• A carbon monoxide alarm activating while the appliance is running

• Check the appliance GC number and serial plate to confirm the model matches the compatibility list
• Confirm the previous number SPK0045 and alternative number 1011477 against the part being replaced
• Inspect the sealing gasket or seal at the flue outlet and replace it if it is compressed or damaged
• This part is fitted to a gas appliance; installation must be carried out by a Gas Safe registered engineer.