While prepping to foam our roof to solve a condensation problem with our ducts in the attic, we discovered our builder never connected a duct to the bath fan. It has been blowing the humid air into the attic and roof line of the vaulted ceiling. We can't get to it now, so we are going with plan B....
We are going to install an in line fan in the attic with the return high up on the wall at the highest point, just above the shower.
We have narrowed the field to Nutone ILF250 and Fantech REG140. The Nutone seems to have a little more output, and both claim to be quiet, so does anyone have any experience with either one? Master bath is 1880 cubic feet and based on what I have read about 250 cfm is about right.