Ah now that makes a difference as that seal is obsolete. A good local independent would have simply made a new one to fit out of an appropriate material, but BG don't allow their engineers to do such things - just one reason why your money is better off being in your bank ready to pay a local engineer as required, than it is in BG's bankHi, I had assumed that it was the case seal but just checked and the engineer said that it was the seal around the glass that you look through to see the pilot light. She (the engineer) showed my mother that it was not working by putting a match by the glass. Apparently the flame on the match increased and then went out?
Thanks for your help