The Halstead fan assembly is the device that pushes fresh air into the combustion chamber, allowing the gas to be burned correctly. It also extracts the noxious gas after the combustion process is complete. The boiler has safety protocols in place to make sure no gas can be passed through to the main burner if the fan is not functional.
Voltage is 230 V
Technical specification
Manufacturer Model No601010Brand NameHalsteadCompatible WithHERO 30, HERO 40 NG, HERO 40 LPG and WICKES HEAT 40