Oil boiler air mix

cd1990

Hi, was trying to remove an airlock after running kit of oil. Mistakenly twisted the air / fuel mix valve and can't remember how.many times etc. Any was to balance set this or do I need a service. I cleared the air lock ⁹:)

Wearb

If it's been serviced recently, you only need him back to reset the pum pressure and flue gas adjustment. Otherwise you should book a service and explain to him what you've done. You're far from the first one to do this.

This boiler could now be producing dangerous amounts of carbon monoxide.

jimf

simple answer no

whizbang

There's still many an old school tech out there will tell you they can set the mixture by eye, quicker and more accurately than a meter.

Its not high tech; its possible to get it close to perfect with good instruction by watching the smoke levels, but if its way off, it can be impossible to get back to a usefull adjustment point.

The older method was to suck a known volume of the outlet flue gas through a strip of paper and compare the amount of soot left on the paper.

Lenar3556

https://www.boards.ie/discussion/comment/121657520#Comment_121657520

The old school method was simply to reduce the air until you started to get smoke and then increase it until just after there was no smoke.

It certainly isn’t more accurate than a meter, and the CO element gets left to chance, you have no way of knowing if CO is being produced and in what quantity and that’s a big issue.

jimf

the biggest cause of high co is over airing

cd1990

Thanks guys. Service booked.