Thanks Andy. The problem I have is that the toilet is against the party wall internally and opposite from the kitchen units. I'd have to vent over a distance of 3 or 4 metres - I suppose by putting a tube in the ceiling or something. Not ideal really as the ceiling is already plastered and...
I'm getting plans drawn at the moment for an extension to my house and the kitchen will include an internal room (with no window) that will be a small downstairs toilet and basin.
My question is whether I need to add in an extractor fan and if I did so then where should I extract to - as the...