Flue through chimney

[Backboiler]

Went to price a job up yesterday to add a rad to existing system. Bloke showed me his boiler that had been fitted in the airing cupboard by Warmfront. The dreaded Icos. The flue had been routed straight through the chimney breast from inside to out. Running a one piece flue through a chimney void is something I wouldn't do never mind if it is acceptable or not. Is this practice done regularly? I don't know if there was a joint inside the chimney as I didn't work on the appliance; I suspect not but if I get the job I won't be able to sleep if I don't investigate the potential danger. Is it just a matter of checking for locking screws and pulling hard? Your thought please.

 

[mountainman]

What potential danger?
If your unsure then AR it, you could be right but you may make yourself look silly if you are wrong.

 

[southcoastboile]

That will soon be AR anyway

 

[Backboiler]

What potential danger?
If your unsure then AR it, you could be right but you may make yourself look silly if you are wrong.

Err, if there is a joint in the space and it leaks? And the mortar erodes in bedroom above and leaks co into child's bedroom. That's all.
I'm not bothered about looking silly. My concern is for safety

 

[mountainman]

That will soon be AR anyway

All these rules and regs are getting out of hand nowadays
Eventually there will be only a few 'Can Do's' on minimum wage being supervised by an army of know nothings on double bubble.

 

[mcniven]

Back boiler what chance do we have if joints on our flues that are supplied buy manufacturers leak because of corrosion????

 

[mountainman]

Err, if there is a joint in the space and it leaks? And the mortar erodes in bedroom above and leaks co into child's bedroom. That's all.
I'm not bothered about looking silly. My concern is for safety

Well AR or ID the ruddy thing, get the supplier to cap the meter so you can sleep at night.
Or
You could see if there is a joint in the void and go from there.

 

[Backboiler]

Well AR or ID the ruddy thing, get the supplier to cap the meter so you can sleep at night.
Or
You could see if there is a joint in the void and go from there.

Thanks

 

[mountainman]

Your welcome.

 

[Nostrum]

Depends what the chimney is being used for if you ask me, if nothing and sealed off permenantly then who cares, If theres a solid fuel stove in there, or the potential to be then I would be worried!

 

[mfgs]

Err, if there is a joint in the space and it leaks? And the mortar erodes in bedroom above and leaks co into child's bedroom. That's all.
I'm not bothered about looking silly. My concern is for safety

I see what you are saying, but the same could apply to telescopic flues going through cavity walls. Yet we dont think twice about doing that. My only concern would be if the chimney is or could be used as then there could be an issue.

 

[andyg0507]

Couldnt help myself back boiler even tho im sunning myself in majorca as we speak, i had to have a quick look at whats going on in the forum, i had this issue a few months back and its ar. tb008.

 

[stevetheplumber]

this used to be common practice before we started using flues as water pipes we used to wrap the flues in gas tape to preven t corrosion from soot

 

[tamz]

To avoid confusion have a read of this
[DLMURL]https://engineers.User PlumbersForums.net Instead - Copy the content, don't link to it.co.uk/Registered/GetFile.aspx?type=T&t=3&file=techinfo%2fTechnical+Bulletins%2f2+April+2012+-+TB+008+Ed+2.1+-+Room-sealed+fanned+draft+chimney+systems+in+voids.pdf[/DLMURL]
Particularly note 2 and 3

TB08 ed2.1 if it doesn't allow the link