Acceptable gas pressure drop between meter and boiler?

Access to the pipes is an easy clear route. (As someone who has to design air ducts up to 800 x 800 to pass through ceiling voids, I have to say that routing a 28mm pipe all the way would have been easy). The total run is 12m inc. all changes of direction. When I state 90 deg bend, I mean an elbow I think? Sorry for trying to use ductwork terminology in a plumbing context!
 
Does anyone think I would be just as well to get CORGI in to check it all afterwards? I got the feeling I was being a bit fobbed off when I phoned the installers.
 
if the pressure to too low the gas wont "pull" enough air into the injectors,

You have lost me on that one !!.
Please explain
 
Blockage in pipework maybe, so get the plumber to check it first

I am a plumber !, we are talking working pressure, and working pressure drops.
I am interested in low gas pressure producing carbon monoxide, when there is sufficiant air supply, regardless from room sealed appliances, or gas appliances where the oxygen is supplied from the room itself.
 
I am a plumber !, we are talking working pressure, and working pressure drops.
I am interested in low gas pressure producing carbon monoxide, when there is sufficiant air supply, regardless from room sealed appliances, or gas appliances where the oxygen is supplied from the room itself.




lol
I was telling that to OP not you plummit
 
I am interested in low gas pressure producing carbon monoxide, when there is sufficiant air supply, regardless from room sealed appliances, or gas appliances where the oxygen is supplied from the room itself.



I thought carbon monoxide is produced only when there is not enough oxygen, or flame interference.
It doesn't matter how low the gas pressure is as long as that gas has enough air and is burned properly
 
ok pre-areated burners have a fixed orifice to mix the correct amount of air with the amount of gas that is passing through the injector,the faster the gas the more air is sucked into injector,conversely the slower the gas the less air, burning gas without enough air means incomplete combustion= carbon monoxide.
 
'Cos frankly, running a length of copper pipe is a
pretty straight-forward job. (Mind you, with all
these bends, it suggests an awkward job!)

I think they are elbows rather than bends.

On a borderline job, I once upgraded the meter outlet
to a 1"x28mm meter connector and ran 0.5m of 28mm
pipe and replaced 2 22mm elbows with bends. Also
straighted out the flexible inlet somewhat. It
worked.



Take no notice of this idiot,hes not gas registered.In fact most on this thread arnt,but theyd like to be
 
Just read the whole thread !
Simply be nice as pie to the engineer when he comes out and explain what worcester man said, this could happen to any engineer.
It sounds like a bit more 28 might just do it(look at the meter is the brass union on the right a 28mm oulet or is it a 22mm one with a reducer on,ie 22mm to 28mm pipe)
 
Just read the whole thread !
Simply be nice as pie to the engineer when he comes
out and explain what worcester man said, this could
happen to any engineer.
It sounds like a bit more 28 might just do it(look at
the meter is the brass union on the right a 28mm
oulet or is it a 22mm one with a reducer on,ie 22mm
to 28mm pipe)


You all foeget the iso valves,never mind comin off in 22mm rather than 28mm.Its F***g undersized.***
 
I think screwhard and Devil Ad's advice seems sound. I was (and will be) nice as pie to the engineer who got stroppy that Worcester Bosch and Transco should query his (perhaps undersized) installation. BTW, it's a full 28mm coming off the meter for the first few metres.

It's undersized ***!!!......it would appear, but I shall be more tactful when the guy eventually pops along sometime next week!
 
Just read the whole thread !
Simply be nice as pie to the engineer when he comes
out and explain what worcester man said, this could
happen to any engineer.

Not an engineer, a <u>fitter</u> or in this case more like a bathroom changer. This would <u>not</u> happen to competent installers.

It sounds like a bit more 28 might just do it(look at
the meter is the brass union on the right a 28mm
oulet or is it a 22mm one with a reducer on,ie 22mm
to 28mm pipe)

That has been mentioned, you must have read that in the tread.

The 22mm elbows should be replaced with bends where possible.
 
I think screwhard and Devil Ad's advice seems sound.
I was (and will be) nice as pie to the engineer who
got stroppy that Worcester Bosch and Transco should
query his (perhaps undersized) installation. BTW,
it's a full 28mm coming off the meter for the first
few metres.

It's undersized ***!!!......it would appear, but I
shall be more tactful when the guy eventually pops
along sometime next week!

Make sure he tests with the hob <u>full on</u>
 
Sadly have not heard from the CORGI engineer as promised by end of Tuesday. Should I be surprised?

Being polite and courteous might be difficult when I phone him tomorrow!
 
And another day goes by without the fella calling me. I can't complain about his customer service, because there is NO service to complain about!
 
Is he local?

Pop round and ring his doorbell?

Makes me mad when people treat customers like this - we all get tarred with the same brush
 
And another day goes by without the fella calling me.
I can't complain about his customer service, because
there is NO service to complain about!

typical hound,in a typical dog pack.woof woof
 
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