The fan is the component that injects fresh air in to the combustion chamber, allowing the gas to be burnt correctly. It also extracts the combusted gas after the combustion process is complete. The boiler has safety features in place to make sure no gas
Fits multiple appliances
Technical specification
Waist Sizead84cf12gwToilet Cistern CapacityFTW--Supplier Part Number004551Brand NameIdeal