Extractor on wall with no outside access - how?

Question

Hi,I am looking to fit a 6" extractor fan for an internal kitchen (i.e. no windows) to an external wall.The problem I have is that the hole will be around 10m from the ground (2nd floor), and although I can probably hire a tall enough ladder to get there and fit a gravity-type shutter, I don't really fancy doing it as the pavement underneath looks pretty unwelcoming...I was thinking about investing in a fan with automatic internal shutter that should take care of incoming draft (will it?), and then just fit a 6" flue, similar to the one used for combi boilers to line the hole and cavity.Will this work? Where can I buy a standard flue?  Any better suggestion?TIA.--Please do not reply to this email using "Reply-To" as address is invalid (hate spam!)

BigWallop · Accepted Answer

Drilled from inside using a proper core cutter, and then flue pipe with cowl andcover through the wall.  Fit the fan on the inside, and Robert is your mothersbrother.

bigcat · Answer

Theres usually a grill on the outside thats bigger than the hole, and fixed to the outside of the wall... I'm not sure I follow what youre suggesting, ie how to finish the job off. I'l need to do something like this later on, so wouldnt mind knowing a way that avoids exterior access.

NT

Mike · Answer

But remember to have somebody guarding the pavement outside for when thecore falls out the new hole and gravity takes over.

JoeJoe · Answer

Good point!  Thanks.

bigcat · Answer

Thanks to Bigwollop for explaing that one.Could be interesting on a 30 storey...NT

Extractor on wall with no outside access - how?

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