I currently have a BBU behind a Radiant Gas fire in the front living room in
my terraced house. I am planning on having a Combi installed, in order to do
away with the BBU, and have an Inset gas flame effect fire fitted instead of
the existing Radiant. My query is; where in the house is the best place to
have the Combi installed? The only Domestic gas supply is into the front
lounge which faces the street, with the gas meter in the corner nearest the
window, and the aforementioned Radiant fire nearby. Would it be ok to pipe
straight up from the lounge, into the bedroom above, and fit the combi
there, in say, a cupboard built for this purpose? I know I would then need a
flue -probably Room sealed/natural draught one. Also, would I be able to
pipe directly from the meter, or would it need another route? I don`t want
to be going unnecessarily over the house, routing gas pipes across it, so
the direct upwards route seems the be the easiest option.
That's fine as far as pipe routing goes. If you have a boarded loft, then
consider putting it up there. Boilers in bedrooms are noisy and distracting.
Most boilers now use fanned flues. These are quite compact and can travel
vertically and horizontally for some distance. However, you don't want a
flue terminal coming out of the front wall of a house. In a front bedroom,
you'd probably want to go up and then backwards slightly and out of the roof
on the rear elevation. This would require many flue extensions etc, so it
might be better to choose a boiler with the capability of using standard
drainpipe as flue parts. Several manufacturers now offer this ability.
Consider running a large gas pipe to your kitchen and installing there. If
you do your calculations right, you'll be able to run a gas cooker off it.
Gas cooking and a having the boiler in the kitchen rather than a bedroom is
likely to substantially increase the value of your home. Many people will
refuse to buy a house with electric cooking, or noisy (and perceived as
dangerous) bedroom boilers.
This is neither necessary nor would it be normal practice.
[Only today I connected a 28kW combi to a shortish run of 22mm and the
cooker was T-ed from near the boiler.]
If the boiler or cooker make such demands for gas that they effect each
other then the gas supply pipe is too small.
About the only time you would run two mains back to a meter is
a) For two exceptional large loads probably exceeding 20kW each.
E.g. two boilers.
b) The appliances were in completely different locations.
Ed Sirett - Property maintainer and registered gas fitter.
The FAQ for uk.diy is at www.diyfaq.org.uk
e) He has been doing professional gas fitting in a different jurisdiction.
f) He was doing professional gas fitting before the requirement to belong to
CORGI existed and ceased to do professional gas fitting when (or before) the
requirement was brought in.
No I'm not. In the UK, the position is quite clear, unless as
Christian has suggested, you used to gas fit before CORGI membership
was a requirement.
Have you read the Gas Safety (Installation and Use) Regulations 1998,
It is completely clear that for professional gas fitting you have to
be a member of a "class of persons defined by the HSE".
The only game in town for that is CORGI.
If you believe differently, please present your verifiable evidence.
To email, substitute .nospam with .gl
You can have the boiler fitted in the loft as long as there is a loft
ladder, boarded, a rail around the hatch and a light up there. Being
terraced, it will most likely have to be flued through a roof tile, unless
you have a gable wall, then through the back. Good combis have integral
Otherwise try running gas pipe to the kitchen, if there is apace there for a
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