In message , Charles Middleton
writes

"JoeJoe" wrote in message
...
Sorry, forgot to mention - door was open when testing.

"Pet" wrote in message
...
JoeJoe wrote:

Is this normal for a fan of such size (85 m3/h)?

I found that with the bathroom door closed the fan is next to useless at
removing air, but open the door and hey presto.

If it's fine with the door open you will need to make some holes
somewhere.

(Previous reply at top of post)

Ive just fitted a 4" Xpelair fan in my bathroom with an inline back draught
shutter (from TLC). As a comparison, when this starts running the shutter is
immediately opened and if there is steam in the bathroom this can been seen
visibly moving towards the fan. I've got a slight gap under my bathroom
door. Nice fan easy to fit and works well. Not sure if your fan is faulty or
just not very good however.

I have a 4 inch fan fitted in the loft space, vent in the celing,
sucking/venting through the roof via about 3 metres of pipe probably. I
don't know how much it sucks, i've never bothered to find out. It does
effectively vent the bathroom though going on the lack of persistent
condensation and mould :-) also going by the amount of dust and fluff
that has collected on the ceiling vent - esp. with all the recent
decorating that has been going on.

There is a gap under bathroom door, and it's is normally left a bit open
anyway.


--
Chris French, Leeds