Originally Posted by DanNJanice
AFAIK it does have to be removed. I think there is another fan than can be retrofitted into the existing opening, but it does not seem to get as good of reviews as the Fantastic. I think it is called a Vortex 2 fan.
I wish Fantastic would come out with a retrofit fan too.
I installed a Vortex II fan in my bathroom because I didn't want to disturb my roof as well. I'm not sure how it compares to a Fantastic fan because I've never seen one, but it moves A LOT more air then my factory little fan. It's a little loud but tolerable.
Install was very easy but the directions were clearly lacking. If you have any mechanical ability, its a breeze of a retrofit (pun intended!)
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