My customer in Naas had the intelligence to realise that the so called professional fitter who installed his stove and flexi liner, wasnt all he was made out to be. When we inspected we found that the flexi flue was inserted upside down, a proper connection to stove outlet didnt exist. In actual fact he used the adaptor at the terminal instead of a chimney cap, packed round it with rock wool and that was it. You can see from the image that the quality of flexi was probably at the very bottom end. The near end of the flexi was left just sitting on the stove.