Somehow, I managed to drop a small plum stone into my central heating boiler - it fell through a gap where the pilot light is :( This fell down to the bottom of the inside of the boiler; all seems to be working fine, but I don't feel confident taking the boiler apart to get it out. Will the boiler be OK with it left in...or do I need to face the embarrassment of getting someone to remove it? Also, to stop stuff falling down the boiler in future, is anyone likely to sell some kind of glass cover I could put in front of the pilot?
Thanks,
Jon