Bathroom Extractor Fan Question

[T1berious]

Hi,

I'm hoping one of you fine gents will be able to answer a daft question? What size is the average bathroom extractor fan? The reason I ask is we're having a new bathroom fitted but in there haste, the builder covered over the hole for the extractor fan.

Foolishly, I ordered a 150mm Extractor to replace the one that is buried at the bottom of the skip but have no idea how big the hole is (as it's covered up at present) or the size of the old one (it's buried in a skip).

I guess I just want someone to say for the Average size bathroom it would be a 150mm

Cheers,

T1b

[T1berious]

Bugger, It would be much easier to just order the right part than open up the hole to take a 150mm?

[T1berious]

The bathroom is being changed into a wet room. So I looked at the flow rate rather than the size (I am a tool) for a replacement and the Manrose 150mm looked pretty biblical on its water rate (230 m3 p/h!).

Is it worth getting the builder that's there to widen the hole to 150mm?

Cheers,

T1b

edited - I ordered the ducting kit for the 150mm unit.

Edited by T1berious on Monday 5th September 09:45