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Can this be done? Currently, our small (60 sf) first floor bath has a cheapo ceiling mounted exhaust fan. It is vented with 3″ pipe down through an interior wall to the basement, and out through the sill. This works ok but is noisy. I think an inline fan could quiet things down, but they are expensive, and might be overkill for this one small bath.
So here’s the idea…..I can replace the fan grille with a cover that will accept the 3″ pipe (A piece of plexiglass with a hole cut in the center, and a toilet flange attached, the whole thing clamped and sealed) Then I would mount the fan to a floor joist in the cellar to make the 90 deg. bend out to the sill. I made a prototype and attached it to the fan (still mounted in the ceiling) and it seems to draw air, but before I go further, can anyone think of a reason this won’t work?
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Can this be done? Currently, our small (60 sf) first floor bath has a cheapo ceiling mounted exhaust fan. It is vented with 3" pipe down through an interior wall to the basement, and out through the sill. This works ok but is noisy. I think an inline fan could quiet things down, but they are expensive, and might be overkill for this one small bath.
So here's the idea.....I can replace the fan grille with a cover that will accept the 3" pipe (A piece of plexiglass with a hole cut in the center, and a toilet flange attached, the whole thing clamped and sealed) Then I would mount the fan to a floor joist in the cellar to make the 90 deg. bend out to the sill. I made a prototype and attached it to the fan (still mounted in the ceiling) and it seems to draw air, but before I go further, can anyone think of a reason this won't work?