While you wait for answers, we may have found some information which could help you.
Click here for Boiler Heating System
Theromostat for a Vulcan Continental boiler?
Gasket for Vulcan Continental 45 60 FB?
has my boiler had its day still works?
Spares -Vulcan Continental Central Heating Boiler?
Spares required for Vulcan Continental 45 60 B F ?
pilot light won't stay on?