Bathroom inline extractor fan in loft

[gh483]

I want to install an extraction vent in the ceiling of the shower cubicle:

1. Is this a done thing/recommended in general?
   
2. If I use an inline extractor fan which is installed in the loft as shown above, does this count as a non-classified area (DIY fair game)?
3. Are there any kits for this type of setup? Preferably with a larger fan diameter than the 4" ones you typically see on walls.

 

[Taylortwocities]

1. Absolutely
2. The loft is not a special location. Crack on.
3. There are many larger than 100mm
For example https://www.tlc-direct.co.uk/Products/ADAV125T.html
But a quality 100mm in line fan should be more than adequate for a shower cubicle.
https://www.tlc-direct.co.uk/Products/SLTDK160T.html

 

[chivers67]

I agree with TTC, the importance of having a Timer over run will get rid of moisture (or a Humid stat if necessary) would be adequate in smaller Rooms as long as there's a space underneath the door or a vent to allow airflow into the room to help expel it...