DIY Doctor

old extractor fan hole in outer wall - help!

Postby George74 » Fri Sep 12, 2008 5:51 pm


I've recently had a new kitchen fitted together with a new extractor fan that is not hooked up to the vent on the out side wall (as I later realised). I’m now left with a hole in the inside wall on one side and the old grill on the outside wall the other side, with just a gap between the outer and inner brickwork between the two.

If I leave it as it is that’s asking for trouble right?

Do you recommend blocking it off, since I have a new extractor fan, even though it’s not hooked up to a vent and if so how so I go about doing that?

Is the best course of action to install a grill and is it simply a matter of fixing a grill over the hole or does the hole in the inner wall have to be connected to the vent on the outer wall some how?


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Simply Build It

Postby htg engineer » Sun Sep 14, 2008 9:29 am

There should be a sleeve between the outer and inner vent, it's up to you really whether you block it up or just fit a vent, I would probably just fit a vent extra ventilation in the kitchen wont hurt.

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Postby George74 » Mon Sep 15, 2008 3:49 pm

It looks like that sleeve was taken out by the cowboys who installed my kitchen but I think they and the grills only cost a couple pounds.

Thanks for your advise
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