I'm having one of these fitted soon - will be a CORGI doing the actual
work but I'm preparing everything in advance.

I'm a bit worried about the flue at the moment. Boiler will be sited on
a party wall at the corner; plan was to take the (very short, straight)
flue out sideways, through the back wall. However, if it were to go out
at 90 degrees, then the flue would have to pass through the lintel of a
window, which barring structural issues, would position it too close to
the window from a gas regs point of view. What I want to know is, can
the flue exit the boiler at an angle other than 90 deg (in the
horizontal plane, that is)? The picture shows the flue having a turret
which sits on a spigot on the boiler top, and it looks like it should be
possible to rotate it infinitely providing it doesn't 'lock' in the
quarter-turn positions. If so, I can organise for my flue to exit the
wall just far enough away from the window; if not, then it's back to the
drawing board!

I phoned W-B technical helpline about this, was told 'no, not possible'
but the person didn't sound too clued-up so I phoned back, and a second
person said 'yes it was'. So I'm now just looking for confirmation from
somebody who has one of these boilers and knows for sure!

(literature he
http://www.worcester-bosch.co.uk/index.php?fuseaction=site.viewFile&id=165988)

Thanks
David