Hi all, would really appreciate people’s thoughts on my experience while attending a local gas course.ten weeks in and I was carrying Out checks on a boiler with a flue analyser, it showed the carbon monoxide reading was at 2000 ppm, the boiler had a balanced flue fitted, so I was taking the reading right next to where the fumes were exiting. Concerned I told the tutor of the high levels, he said they were wrong and I must have set up the flue analyser incorrectly. I insisted we check the boiler together, we did witch showed again that the carbon monoxide level was at 2000 ppm and the flue analyser sounded an alarm, the tutor said he didn’t know what had gone wrong. My a question is how dangerous was this situation?
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