Shower extractor fan - location of transformer

[happypig]

In my new bathroom, I want an extractor fan in the shower. Due to the layout of the house, it's not possible to duct it so I'm going to fit a 12v jobbie straight through the wall.
Am I allowed to put the transformer above the ceiling and if so, is it wise to do so ?

 

[xAlex]

...others will probably advise too but... I installed one recently and the instructions reccomended that the transforma go above the ceiling. Just have to put it in a clear position away from insullation etc.

 

[Taylortwocities]

You'll need to put it where it can be accessed.
The as well as the connections, the adjustments for timing are usually with the transformer.