Bathroom extraction ideas
Author
Discussion

Jumpy Guy

Original Poster:

449 posts

242 months

Monday 1st November 2010
quotequote all
I have a long (14 ft)but narrow bathroom in a victorian house, and have an ongoing problem with moisture when showering

The shower is at the furthest point from the window, and this leads to terrible condensation on the walls etc

High ceilings, around 11 foot, and the windows run to the ceiling. Only the top foot of the single glazed windows opens.

So, finally, my question; how to extract the moisture?

Would a powered fan in the window have any effect? Would I have to locate an extractor over the shower? (this would mean a lowered ceiling, and a lot of work)

Anyone got any ideas?

JM

3,170 posts

229 months

Tuesday 2nd November 2010
quotequote all
A fan in the window should do it, just get a large one. Not massive just 150mm or 200mm. Is there a decent air gap around the door? If not then putting a vent in might also help.

IanMorewood

4,309 posts

271 months

Tuesday 2nd November 2010
quotequote all
Dehumidifier sat in corner of the bathroom?

allgonepetetong

1,188 posts

242 months

Tuesday 2nd November 2010
quotequote all
IanMorewood said:
Dehumidifier sat in corner of the bathroom?
??????????

As previous, get an extractor fan in the window and ensure there is enought air gap around the door / vent to allow air to pass.

s3fella

10,524 posts

210 months

Tuesday 2nd November 2010
quotequote all
You could vent the shower directly. If you have a loft above you, try a large inline fan, set up in the loft, away from the bed to redcue noise, then drag direct from the shower. A simple 110mm hole will do it, with something like an "air control valve" on show in the shower.

You can even do as I have and put another inlet to it elsewhere in the bathroom, to maximise the venting and reduce the sucking noise in the shower!!

Also, dont forget your insulation. If you have very tall ceilings, for not too much you could get some celotex hard insulation sheets to screw direct to battens and then plasterbaord it and have it skimmed. About £200 in labour maybe and say £100 in materials?
If your windows do go right to the current ceiling, they may have to rebate it around the window, but even 50mm of celotex or kingspan will make a huge huge diffrence to the temp of the ceiling, which is after all what causes the condensation on the celiling.

So increase venting, (both in and out) wack the rad up a tad and get some insulation to increase the celing temp and you should see a huge difference.

BTW instead of a window fan that can be unsightly, a roof mounted inline fan can vent rhough a tile vent, a subject of which there is a current thread on in this very forum!
Very neat, simple etc.

PS remember, for a fan of any sort, it is bathroom electrics and you will need a part P sign off. A window fan will be noticeable to neighbours so dont forget this! !

Jumpy Guy

Original Poster:

449 posts

242 months

Tuesday 2nd November 2010
quotequote all
Thanks for the input thus far.

I'm in a bottom floor flat, so venting up isn't really an option.

The window is huge, and currently goes to the ceiling, so if I did lower the ceiling then I'd have to have an angled section to avoid obscuring the window...

An associated question - assuming I did lower the ceiliing, where would the fan be? At the window end, 'pulling', the mositure out along the ducting, or at the shower end, 'pushing' the wet air out?

or both?


JM

3,170 posts

229 months

Tuesday 2nd November 2010
quotequote all
[quote=Jumpy Guy]
An associated question - assuming I did lower the ceiliing, where would the fan be? At the window end, 'pulling', the mositure out along the ducting, or at the shower end, 'pushing' the wet air out?

or both?

[/quote

You could get a fan at the shower end, or one at the window end, or one in the middle.