Flue distance from structual opening

[basildog]

My mate (structual engineer ) wants his new boiler in the kitchen but the distance from the window reveal to the wall is only 220mm now I know the flue will be elbowed up and away from the opening so that is not the question he has in his head that there should be 150mm clear before forming flue opening I always thought it was 100mm which is still pushing it !
Any thoughts ?

 

[kozak1968]

As said already, check the manufacturers instructions on a particular boiler. You can download most installation instructions.

 

[basildog]

some manufacturers allow you to be 150mm from a structual opening if you plume away. Worcester bosch being one.

That is what I mean you get so many mixed opinions on all these regs it seems that they all think they are right ?

 

[GrahamM]

That is what I mean you get so many mixed opinions on all these regs it seems that they all think they are right ?

As mentioned the Manufacturer instructions is king here then you look to regs.
Worcester to name one allow you to put your core 150mm from building fabric as long as plume kit takes the flue discharge at least the standard 300mm from the opening.
This is not a complicated issue to grasp.

 

[basildog]

No not complicated but then you get those that say they will only do as regs state and gsr state in tb`s etc nothing is ever simple .

 

[tamz]

Bas you know as well as i do what will be structurally safe. Sometimes i think they write the regs for the brain dead but at the end of the day we need to follow them.
In my own house (cobblers bairns) i do as i please and know what is and is not safe but out in the big bad world i'll clamp down on anything that isn't as it should be in the books.
Btw look at an Ideal logic or a Glow worm with a rear flue.
It will save a lot of hastle in the future as they can be stuck below the window:wink:

 

[myles]

MI's always 1st port of call! Just saying what I have been told before if manufacturer states otherwise its fine

 

[REDSAW]

why arnt you in the gas safe private forum?

same rules apply to others!

 

[basildog]

Ok sorry if in wrong place but am not sure I understand why the location of a structual opening and fluing options should be contraversial

 

[AlexGas]

Ok sorry if in wrong place but am not sure I understand why the location of a structual opening and fluing options should be contraversial

Are looking forward to going through all of the above with your GSR boiler installer? Hope it goes well.

 

[basildog]

I am gsr just not doing this and it really is an awkward one as to be honest I still do not think it can be done it may well have to be under the window which totally messes up the kitchen ,he has already had the Ooooooh you cannot do that it has to 300mm and that`s that brigade out to look, but him being an engineer they always want to know why and then design something to make it happen .

 

[AlexGas]

I am gsr just not doing this and it really is an awkward one as to be honest I still do not think it can be done...

Did anyone mention to you that you need to read the MI?

 

[Dotty]

Tell him it's because it's the regs and he doesn't need to know why. He just needs to accept it. Plain and simple.

To engineer around it runs the risk of turning it into an illegal installation and one anyone in their right minds would be walking away from.

Baz. I need you to pm gas man or REDSAW with your gsr details please.

 

[basildog]

Some people in this world do not just accept that is the reg`s if we did then nothing would ever be designed or built that solved problems it would be a sad world to live in when you think about it !
As stated vaillant have a flue they say is ok at 50 mm from structual opening for combustion air but without a chat with technical not sure about that one !
The other thing is as said many will take the line Ooooh I have not seen that before and yes they will class it as an illegal installation when in reality it will not be ?
Always springs to mind when a client decided to have a timber ceiling with exposed beams Mr building inspector said it had to be removed ! His boss said we can sort this another way find me a product to fireproof it and all will be ok .
Was a specialist painted fancy ceiling costing thousands but we found a matt clear coating so job done .

 

[basildog]

Did anyone mention to you that you need to read the MI?

I think we all get that one it seems to be the favourite for question setters in all subjects to the point you get sick of answering with I would refer to the manufacturers instructions or operating manual etc !
My point is I do not want to trawl about if someone has a simple answer and says Oh yes we do a couple of those a week with this manufacturer and this flue kit .
At the end of the day I always try to help anyone out as I like to think they will do the same for me one day

 

[Dotty]

I don't entirely disagree with you but every boiler has to be installed in accordance with the manufacturers instructions and the regs in place at the time. As a gsr you know that.

Each boiler is designed and tested to ensure safe operation. To jury rig something to get around the regs is not only foolhardy but downright dangerous.

However, should he get the say so from the manufacturer in writing that they're happy with any modifications then fill your boots.

But make sure you get a copy of said letter attached to your paperwork should gas safe come knocking on your door.

 

[AlexGas]

At the end of the day I always try to help anyone out as I like to think they will do the same for me one day

No probs at all. What is the boiler make?

 

[basildog]

I don't entirely disagree with you but every boiler has to be installed in accordance with the manufacturers instructions and the regs in place at the time. As a gsr you know that.

Each boiler is designed and tested to ensure safe operation. To jury rig something to get around the regs is not only foolhardy but downright dangerous.

However, should he get the say so from the manufacturer in writing that they're happy with any modifications then fill your boots.

But make sure you get a copy of said letter attached to your paperwork should gas safe come knocking on your door.

Yes I would do along with any calcs he has done for the opening that close to a structual opening and attach both to the boiler manufacturers instructions too ao he can wave them in the face of Mr Ooooh I am going to have to report this one .