Hey am a 3rd year apprentice studying for my NVQ level 3 and have a question I wondered if any one could help me with. I know if a flue is to be boxes in it needs access panels so the joints in the flue can be expected, however what happens if your siting a boiler with its side close up to the external wall and a flue extension is needed. As it is likely the joint between the extension flue and the flue will fall in the wall cavity. Is this acceptable as the joint will be inaccessible.
access required to flue joints
- Thread starter Xanderr
- Start date
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Not sure i understand your scenario. But the flue can be cut such that the joint would be one side or other of the cavity.
Depends what MI's say is acceptable.
Most telescopic flues it is acceptable, if you needed to use an extension then cut back so the joint isnt in the wall.
Most telescopic flues it is acceptable, if you needed to use an extension then cut back so the joint isnt in the wall.
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if you mean you need two flue lengths to get through the wall from the boiler, then you cut one back to be visible on the inside. If you mean they had alterations done, so the wall is wider than meter long, Then you have to consult manufactures, as their are boilers what can get round this. Think Kensington do boiler what can do this, as they have different type of flue pipe.
Yes I meant if you need two flue lengths to get through the wall, is it required to cut one length back (the extension piece). So you have a the joint visible on the inside? Not in the wall cavity.
Yes - unless the MI's say otherwise.
MI's rule the roost.
MI's rule the roost.
**** me how thick would the wall have to be 
A few manufacturers do longer extension pieces than 1m too.
A few manufacturers do longer extension pieces than 1m too.
Thickest I had to get through was 1200mm from memory.
Not exactly a wall though.
Had to go through a flat roof the other day. That ***** was the better part of 800mm thick
Not exactly a wall though
.Had to go through a flat roof the other day. That ***** was the better part of 800mm thick
**** me how thick would the wall have to be
A few manufacturers do longer extension pieces than 1m too.
petit they started cladding outer wall know to make them more energy efficient, so they can be quite thick.
Thickest I had to get through was 1200mm from memory.
Not exactly a wall though
Had to go through a flat roof the other day. That bastard was the better part of 800mm thick
How did you get over going through a 1200mm wall? without having a joint in the wall cavity?
At a guess he bought a 2m flue section
give it time and you see a lot more things
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