what are the 2 channels for on my biasi flue?? one is linked to the exhaust and one to the intake, inspection/maintenance maybe? should they both be tight?
Hope you experts can offer some sound advice
Regards
My system is about ten years old and I have had a few probs past 6 months, however, what happens now is the pilot light goes out every time the burner is about to ignite. This happens with either CH or DHW, any ideas??
I have recently fitted a new pressure relief valve and pressure gauge. Upon opening the fill tap, the needle moves much faster than the old one and when the CH fires up the gauge moves quickly into the red. I release sufficient to 1.5 but it quickly goes into the red again. I have to do this 4...