Ventilation Fan Position

[Dustyy]

Apologies if this touches on old ground but search of the topic didn't really answer my question......
I am installing a new bathroom suite in a pretty small room (1.5m x 2mish) which has a lowered false ceiling. I wish to install a ventilation fan to help clear the mist when showering but am unsure on the best position. My options seem to be:
1. Install in the ceiling (above the shower bath?) to maximise steam removal at source and vent it through the ceiling void (18inches depth) and into the loft space - not overly keen on this due to putting damp air into loft and seems abit of a botch job.
2. Install at some point in the ceiling (not necessarily over the shower bath), across the ceiling void and create a hole in an exterior wall and make good - seems like the belt and braces approach but considerable effort
3. Install in the glass of the window - only a shortish solution as intend to replace old single glazed unit with DG in 2-3 years.
4. Leave as is and just open the window when showering.

Can anybody give me any advice please?

 

[Plot1]

Certainly a very good idea to fit the fan - leaving the window open really isn't good enough, especially in winter.

1. Fan in ceiling - a good idea, but it must be vented through the tiles or under the eaves NOT into the loft space! Kits to do this are in the DIY stores.

2. The above solution is probably easier, but you need to decide.

3. I suggest you need a permanent solution...

 

[Lectrician]

Use an inline shower fan kit (dont need to worry about the location of the fan in regards the bath/shower from electrical point of view then.)

Vent through ceiling, and then down to a vent in the eaves, or a hole in the gable end wall. (both top quality ideas, and done by profesionals every day.)

A fan with an over run timer is a good idea when connected to the light.