flue termination query

[richylamb]

Im replacing a boiler where the existing flue terminates about 25mm (not the required 300mm) above a new extension roof, if I add a flue deflector or plume kit will this give me the adequate clearances? I cant find anything in the MI regarding using plume kit or deflector in relation to clearances above a roof.

If my two ideas are no good does anyone have any other ideas?

thanks in advance

 

[hammers4spanner]

contact the manufacturer they should inform you but i would say yes a plumage kit should do the job

 

[SafeGasInstall]

ring manufacture technical support , it depend of the weather conditions how likely is to get 300mm of snow build there ?

I remember some one posting pictures of flue under about 400mm snow last winter

 

[SafeGasInstall]

did you mean 25mm or 250mm ?

 

[richylamb]

25mm its almost touching th new garage roof

 

[tamz]

If it is a flat roof you will need to find a different way to flue it. A plume kit won't overcome this.

 

[SafeGasInstall]

New boiler location !!!

 

[tamz]

Maybe come off with a bit vertical and through higher up or if you are good with a core drill up and angle through at 45º then another 45 to straighten it.

 

[kirkgas]

a plume kit is not designed to make an illegal install right, it is to make a flue which is installed as per the MI "not be a nuisance"

 

[TBServices]

a plume kit is not designed to make an illegal install right, it is to make a flue which is installed as per the MI "not be a nuisance"

This depends on MI's. I brought it up with valiant the other day and their plume kit can be used to direct away from windows etc cos it says so in their instructions.


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[richylamb]

Ive just told customer that they will have to move the boiler.

Thanks everyone

 

[SafeGasInstall]

hope we helped

 

[kirkgas]

This depends on MI's. I brought it up with valiant the other day and their plume kit can be used to direct away from windows etc cos it says so in their instructions.


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so if you read their MI and it says flue must be 300mm from openable window and 150mm from fabric opening in the building, but you can use plume kit to get round this?
or does it say a plume kit can be used to reduce/negate a nuisance caused by the POC's (which isnt the same thing,
do me a favour mate what model boiler is this as i would like to print it off to show students etc as we usually quote the opposite of what you are advising me, cheers for the heads up

 

[Mike Jackson]

Worcester instruction for the greenstar i junior have 2 pages for flue clearances. The second one on page 24 of the manual shows the clearances for the plume kit and it clearly shows the air inlet 150 from an opening.

 

[yadhav]

www.kgplumbingsystems.com

Thanks for posting the commend in this forum





Plumbers in Chennai

 

[mfgs]

a plume kit is not designed to make an illegal install right, it is to make a flue which is installed as per the MI "not be a nuisance"

This used to be the case, but now more and more manufacturers are allowing plume kits to be used to be able to reduce the distance of the air intake to an opening aslong as the plume termination clearances are correct.

 

[TBServices]

so if you read their MI and it says flue must be 300mm from openable window and 150mm from fabric opening in the building, but you can use plume kit to get round this?
or does it say a plume kit can be used to reduce/negate a nuisance caused by the POC's (which isnt the same thing,
do me a favour mate what model boiler is this as i would like to print it off to show students etc as we usually quote the opposite of what you are advising me, cheers for the heads up

According to the trainer on the Vaillant EcoTEC course yes. I brought it up with him as I thought it was daft that you could only use the plume kit to divert nuisance gases. His response was that in the case of the Vaillant boilers, this is not true. They call theirs a Variable Termination kit as opposed to plume kit, and you can use the kit to take POC's away from opening windows etc, even if the main flue is in a place usually considered too close. I hope that makes sense.

I would expect that this covers all the EcoTEC range of boilers and will be detailed in the flueing instruction book. Moral of the story is, always check the M.I's, cos sometimes, as in this case, you might get a pleasant surprise.


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[SafeGasInstall]

Surprise or not 25mm over a roof is a BIG NO NO!!!Winter comes and will cover it over with snow !

 

[kirkgas]

Worcester instruction for the greenstar i junior have 2 pages for flue clearances. The second one on page 24 of the manual shows the clearances for the plume kit and it clearly shows the air inlet 150 from an opening.

air intake isnt the problem, its flue outlet that is the problem

 

[Mike Jackson]

As far as I'm aware no one allows the flue outlet to be closer than 300mm to an opening. There seems to be a lot of confusion over terminal positions and the use of plume kits etc. When you fit a plume kit you are separating the flue pipe from the original concentric configuration so it becomes more like a twin pipe configuration which allows the intake closer than 300.

I'm also seeing people confusing deflectors with plume kits and saying that by fitting a deflector the distance can be reduced which is incorrect.

 

[TBServices]

As far as I'm aware no one allows the flue outlet to be closer than 300mm to an opening. There seems to be a lot of confusion over terminal positions and the use of plume kits etc. When you fit a plume kit you are separating the flue pipe from the original concentric configuration so it becomes more like a twin pipe configuration which allows the intake closer than 300.

I'm also seeing people confusing deflectors with plume kits and saying that by fitting a deflector the distance can be reduced which is incorrect.

Worded much better than I put it. That's the point I was trying to make lol


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