Worcester Bosch 24i Junior - boiler flue fitting query
 

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

Worcester Bosch 24i Junior - boiler flue fitting query
 

On 2006-10-02 19:55:26 +0100, John Stumbles said:

On Mon, 02 Oct 2006 16:54:58 +0000, Lobster wrote:

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.

Yes, it can go out at any angle as you describe. (I've just fitted one of
the model you describe, though the flue is common to most if not all of
the current Greenstar range.)

The telescopic flue (which my merchants - Graham in Reading - say they
think supercedes the more aesthetic and slightly cheaper non-telescopic
version) can also take a 'plume management' system which is basically a
set of pieces to extend the inner, flue, tube away from the main terminal.
This might help you get the flue termination to an acceptable location.

Will this one take an adaptor to convert to twin 50mm mUPVC waste pipes?

That might be another option for awkward flue location if it's possible.

Worcester Bosch 24i Junior - boiler flue fitting query
 

On Mon, 02 Oct 2006 16:54:58 +0000, Lobster wrote:

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.

Yes, it can go out at any angle as you describe. (I've just fitted one of
the model you describe, though the flue is common to most if not all of
the current Greenstar range.)

The telescopic flue (which my merchants - Graham in Reading - say they
think supercedes the more aesthetic and slightly cheaper non-telescopic
version) can also take a 'plume management' system which is basically a
set of pieces to extend the inner, flue, tube away from the main terminal.
This might help you get the flue termination to an acceptable location.

Worcester Bosch 24i Junior - boiler flue fitting query
 

John Stumbles wrote:
On Mon, 02 Oct 2006 16:54:58 +0000, Lobster wrote:

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.

Yes, it can go out at any angle as you describe. (I've just fitted one of
the model you describe, though the flue is common to most if not all of
the current Greenstar range.)

The telescopic flue (which my merchants - Graham in Reading - say they
think supercedes the more aesthetic and slightly cheaper non-telescopic
version) can also take a 'plume management' system which is basically a
set of pieces to extend the inner, flue, tube away from the main terminal.
This might help you get the flue termination to an acceptable location.

Brilliant, thanks a lot for that John - it's a relief!
David

Worcester Bosch 24i Junior - boiler flue fitting query
 

On Mon, 02 Oct 2006 19:53:36 +0100, Andy Hall wrote:

Will this one take an adaptor to convert to twin 50mm mUPVC waste pipes?

Pretty sure the flue itself doesn't. I haven't seen a twin tube flue kit
for the boiler - but I haven't looked, either.

Worcester Bosch 24i Junior - boiler flue fitting query
 

On Mon, 02 Oct 2006 16:54:58 GMT, Lobster
wrote:

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)

As it uses the same basic flue design as quite a lot of other WB
boilers I'd tentatively say it's not a major problem as the outlet
elbow can freely rotate on the lipped seal internally and is clamped
with a removable ring to the top of the boiler casing (using 3 screws)
An identical elbow is used for both straight through the wall and side
exit installations.

The problem with your proposed arrangement comes when you go through
the wall, this really needs to be a 90 degree hole as for a start it
would look slapdash and also the sealing arrangement (mainly it most
be said from weather) on the outer skin could be compromised.

Can't you go out at your funny angle then have a short vertical run so
you can then use a conventional 90 degree angle to go through the
wall?


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