You really need to kick Grittish Bas out !
I am the Managing Director of a Small S.E. Based maintenance Company covering both Domestic & Industrial installations gas & oil, we have in excess of 2000 appliances in our care, I can search the files for combustion data on any of our boilers going back to the formation of our company in 2004.
It can be useful to compare combustion data year on year, as a measure on the condition of the appliance.
I am appalled by your tale, but would hope that if your boiler was as bad as is being claimed, it would have been classified Immediately dangerous and turned off, the fact that the boiler has been left in use, would suggest that things arn't as bad as is being claimed
Boiler Repairman, June 2009