Screws in flues

[zeebeedee]

Came across a few of these this week lacking self tapers in the flue. Two only installed last month. The boiler flues (ideal logics) don't come with screws and it doesn't mention it in the manufacturers instructions. To cover my back I at risked the boilers and out some in to rectify, but am I right in thinking that because the mi's don't state it's needed then its not

 

[tamz]

I couldn't give a fk if it is in the mi's or not. It is getting screwed. It is my rse in the sling not theirs.

 

[Billy Bob Bob]

i agree with tam i screw all the baxi flues together as well,it cant come apart with a self tapper in it

 

[Leo21]

Only required if in mi,s. they should be adequately supported as in mi,s. in my opinion shouldn't have a notice on it. I mainly fit Vaillants and always screw them.

 

[P J F PLUMBING]

i use hex nuts little self tapping screws with rubber washers every time

 

[Barry98]

I screw them too

 

[Leo21]

I would screw them to, just saying its not notifiable if not in mi,s.

 

[plumber0808]

It's not AR. If your AR a recently installed appliance then surely you have to Riddor it due to unsatisfactory workmanship.
if MIs don't state it then its fine. If its not adequately supported then AR

 

[lame plumber]

my opinion is that I dont want to end up in court like the guy that went down for killing the lass a while back when the flue in the garage fell apart and she died in the shower. a couple of self tappers might well have prevented the whole tragic mess.

 

[Billy Bob Bob]

one i done a while back not going anywhere with sand and cement and finally plaster to keep it there,but with a screw its not going anywhere,its not in the mi,s either but i feel you cant be to safe do something right and it wont go wrong

 

[lame plumber]

:iagree::iagree::iagree::iagree:

 

[zeebeedee]

Ill carry on screwing them regardless then! Flues that is!

 

[arran197]

If you ring up Ideal, they're probably say it's not required, but as long as the screw doesn't pass in to the exhaust it'll be fine to do it if you feel it's a common sense thing to do.

 

[ss123]

I was contracting for bg last year and an engineer was formally disciplined for not at risking a boiler when it stated in the Mi's that the flue needed to be screwed/if not in the Mi's NCS

 

[arran197]

Vaillant tend to stipulate the flue must be screwed, I've had service engineers put them back due to not being screwed, but usually there's holes in the collar to show you where they need the screw adding.

 

[Nostrum]

A bit of common sense goes a long way. If it looks like it could come apart without then AR, if its stuck in the wall and not going anywhere but should have them in, it's NCS - if required by manufacturer. I found one today that was a short vertical screwed together on every join but no bracket, I just put it back for fitting brackets as in reality it's not at risk of falling apart unless someone's swinging off it like a lap dancer.

 

[AWheating]

I was contracting for bg last year and an engineer was formally disciplined for not at risking a boiler when it stated in the Mi's that the flue needed to be screwed/if not in the Mi's NCS

surely this would not be AR if the flue is supported well enough. Probably BG wanting to turn off to charge for extra's, what can you charge for 5 mins work putting a few srews in?.

you can see the convo now....... "your flue has no screws sir, we will have to turn off and label. The good news is we can turn it back on if you have a power flush for £800?"

only joking of course?? 🙂

 

[AWheating]

one thing that i think manufacturers should do is include a handful of screws and a 3mm bit with the appliance. Gives you no excuse, not that one should be looking fo one.

 

[Mike Jackson]

surely this would not be AR if the flue is supported well enough. Probably BG wanting to turn off to charge for extra's, what can you charge for 5 mins work putting a few srews in?.

you can see the convo now....... "your flue has no screws sir, we will have to turn off and label. The good news is we can turn it back on if you have a power flush for £800?"

only joking of course?? 🙂

You could argue that the flue is incomplete and therefore AR. Should be academic though as anyone worth there salt will have some self tappers on board and sort it. It does annoy me when a flue is supplied with screws and they are not used. What did the guy think the little packets of screws were for?

I IDed one a couple of years back a Worcester with no screws, not enough supports and too long. The equivalent length exceeded Worcesters maximum and when I touched the flue above the boiler it fell off.

 

[stevetheplumber]

Surely adding a screw to a flue that doesnt come with screws and isnt asked for in mis means youve now modified the flue from makers specificatication
i thought modfied flues were automaticly at risk

 

[AWheating]

You could argue that the flue is incomplete and therefore AR. Should be academic though as anyone worth there salt will have some self tappers on board and sort it. It does annoy me when a flue is supplied with screws and they are not used. What did the guy think the little packets of screws were for?

I IDed one a couple of years back a Worcester with no screws, not enough supports and too long. The equivalent length exceeded Worcesters maximum and when I touched the flue above the boiler it fell off.

you could argue a gas cooker without a chain is incomplete and so on and so on. i agree with you about the screws, I think common sense is needed and lets be honest its quicker to put a few screws in than fill out a warning notice.

 

[AWheating]

Surely adding a screw to a flue that doesnt come with screws and isnt asked for in mis means youve now modified the flue from makers specificatication
i thought modfied flues were automaticly at risk

or is it engineer improvement rather than modification? i guess if you wanted to you could phone and ask the manufacturers permission.

 

[Nostrum]

Adding a self taper is hardly modifying a flue, you boys must struggle getting those vertical flues out straight using those metre long sections, after all cutting it down is a modification?

 

[dancinplumba]

Adding a self taper is hardly modifying a flue, you boys must struggle getting those vertical flues out straight using those metre long sections, after all cutting it down is a modification?

? MI'S tell you to 🙂

 

[Dannypipe]

I carry a little tub of short self tappers, with a big flat head (wish I had a photo handy).

If they look like they could do with a screw or do, I'll buzz one in. Takes seconds!

 

[zeebeedee]

I came across one today, ideal isar. No screws in horizontal elbow, flue not sealed externally or internally. You could have just pulled the flue out from outside! Cemented up outside, bit of foam internally and a screw in the flue job done 10 mins.

 

[Nostrum]

I carry a little tub of short self tappers, with a big flat head (wish I had a photo handy).

If they look like they could do with a screw or do, I'll buzz one in. Takes seconds!

Toolstation > Screws & Fixings > Drywall > Drywall Screw Wafer Head Self Drill

 

[Dannypipe]

That's em. Exactly them!!

I've had my tub for so many years I can't remember where I bought em. Thanks!

 

[tamz]

If its a vertical i rivet them. 3 rivets per joint and it ain't going anywhere.

 

[Dannypipe]

Riveting!!

Sorry I couldn't help myself.

Good idea actually. I've carried a riveting gun and rivets for years, and have only ever used em to repair my mates 'hop up'.

 

[Nostrum]

Me to although I got stick on here last time I mentioned it, something about being over the top..

http://www.ukplumbersforums.co.uk/gas-safe-register-forum-public-forum/33738-vertical-flues.html