While you wait for answers, we may have found some information which could help you.
Click here for Radiators Boiler Oil
grant euroflame 50- 70 bleed screw?
Grant Gemini euroflame 50-90 wont ignite?
i have a grant 70v3, ?
what screw do i undo to bleed a 50/70 grant bolier?
do you do a grant 50 - 70 euroflame flue kit?
Burner Firing But not staying lit?