rubber seals round boiler vent thing

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apologies for not knowing the technical terms...

ive had a new boiler fitted but the vent that goes from the boiler through the wall (and spurts steam when the boiler is running) hasn't got the plastic things aroud the edge of it...

ive seen these things on other people's vents, they cover up the not perfect hole thats made in the wall to get the vent outside... im after a black one for the exterior and a white one for the interior (im not sure how im going to cut the inside one on though - cut it maybe?)

can anyone let me know what they are called and where i might be able to get some? and also, do they come in different sizes? how do i check which size i need?

thanks all!
 
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Why don't you ask your installer. They are normally supplied with the flue kit so he should have fitted it.
 
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he installed it as a favour and has said that he'll get those bits when he can (he got the rest at a discount coz the kit wasnt complete) but that was a while ago and im not sure he'll ever get round to it so i thought id do it myself!
 
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Its a gas safety issue and classed as At Risk or worse if the flue is not sealed gas tightly to the wall, usually on the outside and ideally on the inside too.

Tony
 
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huh?

i think the flue is sealed tightly.. im just after a rubber thing that goes around the edge of it covering up the not perfect edges of the wall and also keeping the cold out... i assumed what im after is something that just sits over the flue and is more decorative than anything else...

can anyone confirm this?
 
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yeh its just a weather seal, ignore agile, he gets a bit carried away.

why dont you just use cement for the outer hole as the rubber things dont really seal much anyway.
 
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Bamber gaspipe

Its a gas safety issue and classed as At Risk or worse if the flue is not sealed gas tightly to the wall, usually on the outside and ideally on the inside too.

Tony


It`s purely cosmetic, you want to try getting out there & fitting a few. :rolleyes:
 
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phew!

i did use cement.. the rubber seal would just be to cover up the cement and make it look prettier!

can nobody tell me where i can get these and if they come in different sizes etc??
 
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They are not generic. Each boiler maker produces their own so you would need to know what make & model of boiler you have. You could then try your local merchants to see if they can get one for your particular boiler.
 
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They're all pretty similar these days though, I bet your flue is within a couple of mm of 100 diameter. I don't always use them, or sometimes use one from a previous boiler I've installed if the colour's better for the present one.
Your trouble is, that afaik they only come with the flue, and aren't listed separately. Try a call to the boiler manufacturer, I'd expect you have a fair chance they'd just send you one/two.
The inner one really has to be put in at the time of installation though I suppose you could cut it and stick it in place
 
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To Bamber and Nickso, most CORGI Inspectors will not accept a flue which has only been sealed with the rubber gasket!

Worse, most CORGI Inspectors will expect the flue to be sealed on the outside AND the inside!

When I argued with one that it was only necessary for it to be gas tight and weather sealed on the outside, he did retract a little and said that it was "good practice" to seal on both sides.

In my view the rubber gasket has no place outside if properly cemented.

On the inside, I prefer the flue not to be hard sealed and to be finished with a gasket as that makes correcting any flue elbow problem easier.

Tony
 
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most CORGI Inspectors will not accept a flue which has only been sealed with the rubber gasket!

That surprises me a little, Tony, as there are some manufactuers to allow their flues to be installed from the inside of the property i.e. high rise blocks, where it would be impractical/impossible to make good on the external face with mortar.
 
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Most manufacturers are happy just with the gaskets they supply!

Its just CORGi who are more fussy!

The outside sealing is to stop gasses but also to stop water running into the fabric of the wall.

Many high rise are only panels rather than brick or block. Most flues have a method of fitting an outside gasket from the inside so it flips out when its pushed through the hole in the wall.

In practice I expect CORGI would accept something not properly sealed on the outside where thats not practicable as long as its gas sealed on the inside. But they dont if its ground or first floow where its quite accessible.

Tony
 
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most CORGI Inspectors will not accept a flue which has only been sealed with the rubber gasket!

That surprises me a little, Tony, as there are some manufactuers to allow their flues to be installed from the inside of the property i.e. high rise blocks, where it would be impractical/impossible to make good on the external face with mortar.

Seems the Corgi men and the GB's guys are getting pretty picky about this and the safety relief pipe turning back towards the building with a double elbow
 
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To Bamber and Nickso, most CORGI Inspectors will not accept a flue which has only been sealed with the rubber gasket!

i invite the nearest corgi bloke to try to convince me that the rubber doofer specified by the manufacturer is not acceptable. i already said cement is far more practical but as someone has pointed out the rubber doofer is the only solution in certain circumstances. maybe your corgi has hard-on for such matters. mine is an arrogant moron who probably wears his underwear back to front without realising. i find it highly unlikely the rubber ring would cause a problem in even the most extreme of cases.
 

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