What actually is a boiler service and what does it involve?
The boiler servicing procedure is very different for many companies.
For some, no names, it's just, inserting the flue gas analyser probe into the flue, printing off the readings.
If they are within the limits, that's the boiler serviced.
To me, a boiler installer, that is not a boiler service, it's just a combustion check [...]