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But they all cost you money as you cannot make anyone on benefits pay anything. That's why they can behave so badly!
I also take the view that the installer could reasonably have forseen that it was going to cause a nuisance!
Thanks Tony. Agree on both counts.
The 140mm I quote is from the centre of the party wall to the edge of the flue outlet, as you can see. Not sure if you meant the metal edge of the flue terminal overall. The boundary is actually behind his soil pipe, about 30mm from the right hand edge of it, on the pic. (You can just see the different colour of the pebble dash, if you look closely.)
I was working near the back door when the installer was talking to him. Part of the conversation went "...well your neighbour might complain, if I don't..." (I'm assuming he was referring to fitting a plume management kit.) So he was obviously aware there could be problems.
As I said earlier though, things had quietened down at the time, and though I mentioned it to him, I didn't want to press the issue, in case it started the little s**t off again. He has nothing to do all day but make a bloody nuisance of himself; my wife and I have a living to earn. So typical of the @rse-about-face country we live in, now.