On Sun, 12 Mar 2006 22:35:57 +0000, Guy King wrote:

http://www.clubi.ie/plumbing-heating/bm.htm

Some may have seen this before - and of course it's not restricted to
the Irish, I've seen stuff like this in the UK often enough.

The "Cistern overflow pipe and vent over flue" also shows the flue being
unacceptably close to an air vent.

Overall interesting, but sad that the text is as shoddy in places as
the work it illustrates.