On Fri, 15 Aug 2008 06:43:48 -0700, Martin Pentreath wrote:
Hi all,
Having just read Stephen's post about boiler flues I'm getting worried
about the location of mine.
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FLUE - 0--___________
250mm| |
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The capital O is the end of the boiler flue. It comes straight out
through the wall from its cupboard. It's almost exactly 1m below the
bathroom window (which I think is OK?). However, it's 250mm from the top
left corner of an external door, which I think might be a problem? In
fact the door is virtually never opened, we use a different door to get
to the garden, and the boiler has been there for several years with no
ill effects.
In fact I've just found this in the installation manual of my boiler's
successor (the Ariston microgenus HE, condensing model, which is what
I'm likely to replace this one with):
TERMINAL POSITION mm
A - Directly below an open window or other opening 300 B - Below
gutters, solid pipes or drain pipes 75 C - Below eaves 200
D - From vertical drain pipes and soil pipes 75 E - From internal or
external corners 300 F - Above ground on a public walkway or patio 2100
G - From a surface facing a terminal 2500 H - From a terminal facing a
terminal 2500 I - Vertically from a terminal in the same wall 1500 J -
Horizontally from a terminal in the same wall 300 K - Horizontally from
an opening window 300
It doesn't actually mention any rule governing the horizontal position
from a door. The closest is (K) - horizontal distance from a window.
However, presumably windows are different from doors because they are
inclined to be left open for long periods for ventilation, rather than
just used for going in and out.
If the rule is 300mm from a door, I might just about get away with it if
we're talking about the distance to the centre of the flue, rather then
it's outer circumference.
Am I worrying about nothing? Will I get condemned by the gas man? Will
we all be gassed in our beds by boiler fumes? Should I nail the door up
and have done with it?
Cheers!
It appears from the figures you quote that the flue is a modern powered
flue? It might be a natural draught type if the boiler was a very low
powered unit. However the 75mm suggest that the flue is modern.
I don't think the 50mm is going to do you or anyone any harm. However if
you had a very thorough gas safety inspection (because you were going to
let out your house) then a very thorough gas fitter might just pick this
up. The solution is likely to be to make the door permanently shut.
--
Ed Sirett - Property maintainer and registered gas fitter.
The FAQ for uk.diy is at
http://www.diyfaq.org.uk
Gas fitting FAQ
http://www.makewrite.demon.co.uk/GasFitting.html
Sealed CH FAQ
http://www.makewrite.demon.co.uk/SealedCH.html
Choosing a Boiler FAQ
http://www.makewrite.demon.co.uk/BoilerChoice.html