Here is a nice one

[BOB..DOLE]

What would you class a back boiler with no third seal.

 

[corgigazza]

N.C.S most of the ones I service have this missing you say to the customer and they dont want to pay to have it put right, using fibre glass and copex liner sealing plate.

 

[Paul Barker]

I think it's classed as at risk, but if it's just not to current standards find another fluing or ventilation fault and you have your at risk anyway.

If however spillage results from lack of 3rd seal you have imediately dangerous.

But in any case, stuff some rockwooll up there.

 

[nickso]

its ncs.

stuffing rockwool up the hole isnt good enough anymore either...needs a plate to hold it up.

 

[fitz1]

if pipework is open at side of chimney i treat it as at risk.

 

[nickso]

if pipework is open at side of chimney i treat it as at risk.

thats a different thing entirely and it is at risk

 

[BOB..DOLE]

Well the answer chaps is ncs as long as their is no signes of secondery flueing or spillage got me tho i thought it was ar check it out in the corgi book of unsafe suituatuions 4 th edition.

 

[ChrisR]

The corgi book, iirc, goes into corgi-esque phrases about "reasonably practical", doesn't it?
I called Baxi on this once, and they , quite correctly in my view, pointed out that the original boiler instructions did not (until more recently) demand a "third seal", and some did suggest stuffing rockwool up the annulus.
Other than the recent change in undersized-vent categorisation, the regs aren't retrospective beyond a declaration of NCS.
I record them as NCS, unless it's a recent installation and I feel stroppy.

 

[Baxmax]

isnt it N.T.C.S.

Or are we supposed to leave the "to" out of the abbreviation.

 

[ollski]

Its ncs unless the pipes aren't sealed through the wall in which case its ar.

 

[fitz1]

but its only ncs if you can guarantee existing chimney is of sound condition.i;e no joints leaking into upstairs bed.

 

[fitz1]

anyway dont matter what book says. always cover your arse.no one is going to jail you for being too safe.

 

[ChrisR]

I don't agree. If it isn't spilling outside the flue hood there's no danger.
It DOES matter what the book says! Can't declare something AR just because we don't like it.

 

[dan the man]

in any case if u can wedge some rockwool up there on end of some copper than wedge... ahh the nightmares come back..bloody 3rd seals the bain of my former working life.

 

[baxpoti]

Well the answer chaps is ncs as long as their is no signes of secondery flueing or spillage got me tho i thought it was ar check it out in the corgi book of unsafe suituatuions 4 th edition.

GSIUR reg. 29. Ref M.I.
The letter of the law is quite straightforward on this matter.
Manufacturers instructions must be followed werever available.

From 1997 BBUs were fitted with ASDs
M.I. state
9in x 9in brick flues.
The flue must be structurally sealed between the liner and the brickwork at both top and bottom.