Filling in gaps around flu

Agreed sealing it from the outside could be a problem but make good on the inside should be part of the job whether stated in the install guide.

What don't you get,it's got the internal seal fitted.it doesn't need sealing it's exactly as per MI's
 
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Agreed sealing it from the outside could be a problem but make good on the inside should be part of the job whether stated in the install guide.

What don't you get,it's got the internal seal fitted.it doesn't need sealing it's exactly as per MI's

Sorry I wouldn't rely on a supplied seal to act as a draught excluder from the ventilated cavity, I would have made good first and then used it to finish the job.

You might aswell drill a deliberately oversized hole to aid the fitting of the flue knowing the seal will cover the gap.

Just because you can cover it up doesn't mean you can't do it properly

Just my 2 pence
 
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Wangerman you really need to start fitting boilers before you give advise on a forum about it fella.


everyone DOES core oversized holes for a flue to fit through - standard is
127mm hole for 100mm flue.

Tell me what would you do, core out 101mm, or 102mm perhaps?

:rolleyes:
 
Agreed sealing it from the outside could be a problem but make good on the inside should be part of the job whether stated in the install guide.

What don't you get,it's got the internal seal fitted.it doesn't need sealing it's exactly as per MI's

Sorry I wouldn't rely on a supplied seal to act as a draught excluder from the ventilated cavity, I would have made good first and then used it to finish the job.

You might aswell drill a deliberately oversized hole to aid the fitting of the flue knowing the seal will cover the gap.

Just because you can cover it up doesn't mean you can't do it properly

Just my 2 pence

The point is this boiler and many others tell you exactly how to fit it in the instructions.this one tells you to drill an oversize hole and use both seals.if it's good enough for the manufacturer then that's end of unless you think your better than the manufacturer.
If you do it different that's fine but what gets me is the number of boiler repair specialists that come on spouting crap and calling people cowboys because they cant work that quick or believe that they set the rules not the manufacturers/gar drives me mad.
Some would have done the job different but thanks to some the op thinks his installers a cowboy and hasn't fitted the job right even though it's done to the instructions.
 
Wangerman you really need to start fitting boilers before you give advise on a forum about it fella.


everyone DOES core oversized holes for a flue to fit through - standard is
127mm hole for 100mm flue.

Tell me what would you do, core out 101mm, or 102mm perhaps?

:rolleyes:

doesn't matter whether it's fitting a boiler plastering a wall, rewiring a house it's all the same in practice finishing the job off professionally is the most important and using a cover plate to conceal a gaping hole isnt it

Just because I don't fit boilers doesn't mean I can't comment on what I consider good tidy working practice :rolleyes:

And for your info when I hung my boiler I cored out 100mm knowing it would drill slightly oversize I have a gap of no more than 3mm all round and the flue lines up perfect.

Just needs careful marking not a sodding great big hole :rolleyes:
 
Hmmm I'm sure you did......

:rolleyes:

100mm core drills always drill slightly oversized try it rather than :rolleyes:

Used it to fit 10's of bathroom fans and ducted with 4" soil, Fit's a treat in the hole


But hey keep your closed minded attitude and your 5" core cutter

Jesus didn't realise how protective some of you heating engineers are of your working practices.

Been using 5" core for years blah blah blah
 
Well if its a ****ing contest I've fitted 100's of flues.

A boiler flue has to fit onto a flue spigot, and you would struggle and have to get that flue hole 100% correct , not even 1mm out, in order to be able to fit that flue to a boiler. When you drill a bathroom vent it doesnt matter if you got 5 or 10mm out, it does when you fit a flue.

Its not about refusal to change working practises, its about making life on - site as easy as possible without problems.

I don't believe you hung your boiler first time after drilling a 100mm core hole and didn't have to move the boiler after tou had done it.

By the way as a non - RGI are you allowed to be hanging boilers?

:rolleyes:
 
100mm core/4inch soil......brilliant

Now I know your full of ****,4inch soil is 110mm.
 
Just had a quick look through a Potterton Gold MI's. Hole required for the flue (chimney) should be minimum diameter of 116mm.
 
Not saying that all different manu's state that minimum hole diameter size. Just I've recently been fitting a few of these so had details handy.
 

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