Warning notice classification on not sealing flue hole.

[splinterdream]

Hi,
Can someone tell me the classification of finding that the core hole hasn't been sealed after a boiler install please? I've been 'At Risking' them but I've been finding a lot recently and I want to make sure I'm correct just in case a landlord flags it with gas safe. They get covered with the decorative rings but that's not right and by my thinking are at risk of fumes finding there way back into the property. You used to be able to look these things up but the 'Unsafe situations' these days is garbage.

Am i being over zealous and it's a NCS or am I right with an AR? input appreciated

 

[AWheating]

its AR. The only time its not is if the boiler manufacture states its exceptable to use the sealing rubber (not a great name for a dress guard) alone. Im only aware of Worcester bosch allowing this. But i would want to atleast see the internal wall sealed for peace of mind.

 

[diamondgas]

Hi Splinter .... My thoughts regarding this has little to do with the regs to be honest! Simple terms, balanced flue boilers without a fan had a chance of letting some "dangerous!" POC's into the building via any gap around the flue ... a fan assisted modern boiler has virtually no chance of spewing anything dangerous back through a small gap around the flue, especially if the weather collar outside or the cover inside is fitted!!! However regs are regs and they state AR! I'd argue it as a load of .......... ! 🙂

 

[splinterdream]

Thanks for that, I wasn't aware of the Worcester/Bosch spec as I don't install and I have just AR'd one on a gas safety cert. Will have to give them a ring in the morning to confirm.
It is just bad practice and lazy though and it should be one rule for all.

 

[splinterdream]

I agree Diamondgas and I do hate filling out Warning Labels

 

[diamondgas]

Thanks for that, I wasn't aware of the Worcester/Bosch spec as I don't install and I have just AR'd one on a gas safety cert. Will have to give them a ring in the morning to confirm.
It is just bad practice and lazy though and it should be one rule for all.

Core drills sheeeeeeeeeeesh! Makes you lazy ... lol ... Personally a hammer and floorboard lifter (bolster chisel) did the job much quicker 🙂

regards bad practice I wonder if the reg makers are just too slow to catch up!!!?

 

[Billy Bob Bob]

i see a diffrent problem to flues chucking fumes back in if its not sand and cemented,on modern condies most flues are push fit dont make good with sand and cement and the flue could come apart,personally with the boilers i fit theres no excuse not too i even self tap them as a extra precaution,the flue never needs to come out again because on the gold combis the EV is inside the combustion box

 

[stevetheplumber]

Core drills sheeeeeeeeeeesh! Makes you lazy ... lol ... Personally a hammer and floorboard lifter (bolster chisel) did the job much quicker 🙂

regards bad practice I wonder if the reg makers are just too slow to catch up!!!?

in think youve got those rose colloured specs on core drill is great hardly any making good and no smashed hands harder the bricks the better it cuts i love it

 

[diamondgas]

Agree gas man ... rigid fixing ensures no movement when the spark electrode goes ****-up and explosive ignition occurs, popping the flue joints willy-nilly! Seen to many boiler flues blown appart TBH! 🙂

 

[Millsy 82]

Core drills sheeeeeeeeeeesh! Makes you lazy ... lol ... Personally a hammer and floorboard lifter (bolster chisel) did the job much quicker 🙂

regards bad practice I wonder if the reg makers are just too slow to catch up!!!?

I can remember those days walking into college with possibly shattered left hand from missing the chisel too many times, All the other lads laughing at me as they all got to use core drills but the miserable old sod who taught me was too tight to buy one.

 

[AWheating]

you also have not kept the fire rating of the wall, and rain is more likely to be able enter causing damp inside the property. not major points but fumes are not the only reason to seal up 🙂

 

[diamondgas]

in think you've got those rose colloured specs on core drill is great hardly any making good and no smashed hands harder the bricks the better it cuts i love it

Seriously? It takes me ages to do what a hammer and chisel did in no time Steve! 🙂 I've spent an hour drilling what would have taken half the time knocking out! It looks neater drilled with out a doubt! But to split a couple of briicks for the modern flue takes no time in my experience, then making good is permanent 🙂 .. Just the way I am.....! 😀

 

[diamondgas]

I can remember those days walking into college with possibly shattered left hand from missing the chisel too many times, All the other lads laughing at me as they all got to use core drills but the miserable old sod who taught me was too tight to buy one.

Well I'm old 😀 :lol:

 

[AWheating]

[video=youtube;ld1PWjxQ7aM]http://www.youtube.com/watch?v=ld1PWjxQ7aM[/video]

 

[diamondgas]

I think core drills have made folk lazy personally .... The merchants sell big bags of sand and cement mix and there's just a tiny gap to fill....... hmmmm.... "why not just leave it?" I think goes through a lot of installers mind! Rather than 'waste' a lot of mix...!!!!! :lol:

 

[Mike Jackson]

Personally I find it easier just to fill the hole in than bother filling in the paperwork to AR it. If there's no access to the outside just fill it inside.

 

[Pssst]

In general,unless the gap was very tight, I'd be thinking AR. All it needs is for the wind to change on a blustery day and POC can easily be sucked back into the house. Some squirty foam filler is the norm isnt it or even some FJC if its a fairly narrow gap ?