can two exhaust fans one vent
Figure B: Two bathrooms, two roof vents. Each bathroom has its own exhaust fan; each fan vents separately out the roof. If you have two bathrooms that are close together and one has an exhaust fan and the other doesn't, you might be wondering if you can tie a new exhaust duct into the existing one.Well, you can't!ut while you can't have two fans with one vent, you can make one fan and one vent serve two bathrooms. This setup requires an in-line centrifugal fan mounted in the attic drawing air simultaneously from both bathrooms (see photo).