RAVENHEAT 5021305 FAN. Product Information: The fan is the device that pushes fresh air in to the combustion chamber, allowing the gas to be burnt correctly. It also extracts the burnt gas after the combustion process is complete. The boiler has safety parameters in place to make sure no gas can be passed through to the main burner if the fan is not working correctly. This part is present in 3 different boilers in the Ravenheat range including the Ravenheat RSF 82ET , RSF 82E , RSF 820/20T .
eBay