I've just had a new Vaillant boiler installed yesterday to replace a 30+ year old Glowworm boiler and I'm wondering if anyone could comment on the placement of the flue.
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Flue placement on new boiler installation
- Thread starter Timothy Ranger
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View the thread, titled "Flue placement on new boiler installation" which is posted in Boiler Advice Forum on UK Plumbers Forums.
Should be 150mm unless plume kit I believe
Thanks for the reply. Is that 150mm distance from the drain pipes surrounding it?
Is the Vaillant ecotec pro 28 a fanned draught I take it?
G is the issue
Thank you very much for your time. I'll speak to the installer when I get the invoice.
Did he make you aware before hand that the boiler should be moved ideally?
Any pictures of the actual boiler install mate?
The old boiler had one of those square steel flues which came out under the car port which had a hole cut around it.
The old boiler needed a part replacing which another gas safe worker botched, so we got another who came to assess. He said we would either need to cut a larger hole in the carport for the flue because it was less than 300mm, or get a new boiler and have the flue come out the other wall and with a plume kit if it was too close to the window opening.
We chose the latter because we didn't want to have to chop up the carport for such an old boiler that was probably on it's last legs anyway.
It isn’t right but currently you do not have a plume kit attached.
TBH easier to modify the down pipes but better than what’s he done
I have just received the following attachment in an email from Vaillant which confuses matters even more for me. It states 25mm away from vertical drain pipes and 75mm below pipes and drains.
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That doesn’t look like a Vaillant one to me. What model of boiler is it you have?I have just received the following attachment in an email from Vaillant which confuses matters even more for me. It states 25mm away from vertical drain pipes and 200mm below pipes and drains.
Just about ok then , just looks a bit of a mess .
Vaillant ecotec pro 28. The document does has other tech info on the next page regarding Vaillant vertical and horizontal flues.
Then I don’t know why Vaillant have sent you that picture, as that is not the one that comes with the boiler. The one I posted is the one in the installation manual. Take a look for yourself, you should have the same book onsite with the boiler. It is on page 44.
To be fair Vaillant have two diagrams. Ones which come with the book and then another one they have from somewhere! If you ring technical they will give you the diagram attached - had the same issue with a vertical flue and a CF on a roof (Distance apart). Book diagram doesn't show distances from everything. Rung technical and they quoted same diagram. Apparently you can download it off the Vaillant website in some section.
Even if the 75mm gap is correct, the flue is still too close to the pipework directly above.
I've emailed back Vaillant with the picture of the flue and will see what they say.
Thanks everyone for your contributions. I'll report back with my findings.
I've emailed back Vaillant with the picture of the flue and will see what they say.
Thanks everyone for your contributions. I'll report back with my findings.
S
Sharp Point
Is this a grant job? Have you paid the installer?
I have received another email from Vaillant with the following email.
Here is a closer image of the flue. (Forgive the poor lighting, I just got back from work)
I have only paid half so far which covers the materials and the boiler. The job was completed on Wednesday evening and I have been sent the invoice for the rest.
Here is a closer image of the flue. (Forgive the poor lighting, I just got back from work)
I have only paid half so far which covers the materials and the boiler. The job was completed on Wednesday evening and I have been sent the invoice for the rest.
Wouldn't worry about that to be honest.
S
Sharp Point
I have received another email from Vaillant with the following email.
Here is a closer image of the flue. (Forgive the poor lighting, I just got back from work)
I have only paid half so far which covers the materials and the boiler. The job was completed on Wednesday evening and I have been sent the invoice for the rest.
Sure you’re not looking for an excuse not to pay out the rest?
Thanks for the reply. The only reason why I'm being rather fussy about the flue installation is because my gas was capped by edf when they came to fit a smart meter. They found the valve on the boiler was sticking open when the pilot light went out.
I had a gas safe worker come to have a look and he replaced the bad part which I sourced. He left me with two gas leaks on two separate occasions with one being on the meter he uncapped and one on the valve he fitted, which he botched by stacking the incorrect sized o-ring with another fibre o-ring to raise it. This meant I had to call the emergency gas people twice and they capped me on the second time.
So the guy who fit my new boiler wouldn't work on the old one because the old steel square flue was under the car port with a hole above it, but was less than 300mm away from either side.
My fear is being capped again on a technicality and having to deal with more workmen. My mother and I were without gas for about 5 weeks and it was a real pain.
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You will not get turned off for that in my opinion.
I have received another email from Vaillant with the following email.
.
So basically what I said earlier!
M
Murdoch
Buy cheaply, buy twice ....
What does this comment mean? I’m lost.
M
Murdoch
The op has stated he has previously bought part(s) and got somebody to fit them ... this suggests cost cutting imho
Then the questions about the install ..
I got the part because he said he will have trouble getting it.
From the look of your flue he has altered all the pipes to facilitate the fitting of the flue there looks like he has gone to a lot of messing about to make sure he could get flue in a safe place, just ask him to alter the pipes again to make the install conform to regs,
richard978
Gas Engineer
Yes alter the rain water at the top, it will look a lot better that way as well.
Get the plumber to do it for you, he should have priced it in and it’s his job to fit to manufactures instructions.
You still won’t get the required clearance but it will look a lot neater
Get the plumber to do it for you, he should have priced it in and it’s his job to fit to manufactures instructions.
You still won’t get the required clearance but it will look a lot neater
Get the origion plume kit fitted. I’m sure clearances are reduced to 25mm then.
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