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.
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Technical Specifications
Toilet Cistern CapacityFTW--Supplier Part Number800202Brand NameGlow-Worm
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Glow-Worm 800202 Fan Assembly F/Savercomplheat 30 40 55