I'm researching replacements for a broken extractor fan in my kitchen. It is wall mounted and runs through the wall straight outside, no long ducting involved.
The current (broken) fan is the centrifugal design. My understanding these are best for long runs of ducting, and seem to be lower powered (lower volume of air removed per hour) compared to axial fans.
Another point to mention is that there is a shutter on the end of the ducting, on the outside (to prevent backdraft and bugs/dirt/debris getting in, I guess)
My question is, given I don't have a long duct to extract through, should I get an axial fan over centrifugal design. Axial fans seem to be more powerful, and the increased airflow seems good to clear out kitchen cooking odours, smoke, etc.