Deimos Posted December 1, 2005 Share Posted December 1, 2005 Anybody any ideas about how easy it is to install a bathroom extractor fan. Electrics is no problem, it’s making the hole in the external wall I’m more concerned about. Does one just set about the wall with a stone chisel ? Are there any structural issues with such a sized hole (e.g. how far from joists and lintels is advisable, etc.) ?Many thanksIan Link to comment Share on other sites More sharing options...
Mysfloss Posted December 1, 2005 Share Posted December 1, 2005 whats the wall made of? Link to comment Share on other sites More sharing options...
Teamedup Posted December 1, 2005 Share Posted December 1, 2005 Have you not thought about installing a VMC instead. I absolutely love the VMC system. Link to comment Share on other sites More sharing options...
Liz Posted December 2, 2005 Share Posted December 2, 2005 [quote]Anybody any ideas about how easy it is to install a bathroom extractor fan. Electrics is no problem, it’s making the hole in the external wall I’m more concerned about. Does one just set about the w...[/quote]I know what my OH does. Put through a pilot hole at the centre of the circle. Then daisy chain drill around the circle. Then hack out with a chisel and swear a lot . Perhaps someone can come up with a better method!Liz (29) Link to comment Share on other sites More sharing options...
Iceni Posted December 2, 2005 Share Posted December 2, 2005 IanYou haven't mentioned materials used for ext wall - bricks, blocks. big/little stones. Having seen how our mason attacked our stone barn wall I have installed a VMC going up through ceilings etc. and exiting under the eaves where there are numerous gaps. The bathroom/kitchen extractor pipes for our VMC are 80 or 125 mm and the exhaust is 125 or maybe 150.HTHJohnnot Link to comment Share on other sites More sharing options...
Deimos Posted December 2, 2005 Author Share Posted December 2, 2005 Sorry. Plasterboard inside and old bricks outside. Not sure if there is anything else between the two (but I would assume not).VMC was a thought but nowhere convenient to put the VMC box (the ones I have seen are fairly large, plus they are not cheap).Many thanks. I think there will be a lot of swearing when I do it. Trouble is that with other work the swearing has not helped (even though it gets worse and louder as the task progresses).Ian Link to comment Share on other sites More sharing options...
Gyn_Paul Posted December 3, 2005 Share Posted December 3, 2005 If you can drill a pilot hole through from one side to the other so much the better; plasterboard is easy to deal with, the brick less so. You will find the first brick the hardest to remove. once you have the pilot hole (or very careful measuring), with a masonry drill, go round the brick drilling numerous holes in the mortar course, slewing it from side-to-side, then join the holes up with a cold chisel and hammer until you can wiggle the brick loose and get it out. Generally, the less brute force hammering you do the less you'll damage the rest of the wall. If you need to cut half bricks, take a whole brick out, then chop it in half with a hammer and chisel and motar the half you want back in: you'll not manage to split a brick in situ unless you are really lucky.As long as the top of the opening is only a single brick wide you need have no fear of anything cracking or subsiding.p Link to comment Share on other sites More sharing options...
Teamedup Posted December 3, 2005 Share Posted December 3, 2005 I didn't think our last VMC was expensive, from Casto at around £60. We had a dearer one before, but this one works fine. Link to comment Share on other sites More sharing options...
Anton Redman Posted December 3, 2005 Share Posted December 3, 2005 I normally look for the easiest route out for the flexiable tubing. Sometimes you go up through the roof void then down via the soffets boards. UK building regs are always worst case scenario. Link to comment Share on other sites More sharing options...
Deimos Posted December 3, 2005 Author Share Posted December 3, 2005 [quote]I didn't think our last VMC was expensive, from Casto at around £60. We had a dearer one before, but this one works fine.[/quote]I'm sure most of the ones I saw in Leroy Merlin were €several hundred. Maybe I will look again - mainly because above the bathroom I need to ventilate now is where I intend to put a 2nd bathroom in the attic. Doing it with a VMC would mean I could exit through the roof which would be easier.Even if not, the suggestion to pipe maybe through the roof space might be easier (for me) than directly through the wall. That said, after the assistance here I can see that through the wall is not quite as horrendous as I had feared. I will look and think some more.Many thanks allIan Link to comment Share on other sites More sharing options...
Teamedup Posted December 3, 2005 Share Posted December 3, 2005 I agree a few hundred euros is expensive, shop around I know that there are cheaper ones out there that work perfectly well. Link to comment Share on other sites More sharing options...
Jc Posted December 5, 2005 Share Posted December 5, 2005 It is still possible to get fans that fit in windows-tho' you need to have the hole made professionally,preferably in new glass. Link to comment Share on other sites More sharing options...
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