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Old 10-09-2012, 02:44 PM   #46
Commuter Boy
Beastly Adventurer
Joined: Dec 2003
Location: Burnaby, BC
Oddometer: 2,951
Don't cheap out on the duct size, moving up to 5" or 6" will let you put in a much quieter model and still move the same amount of air.

The corrugated plastic conduit gets NASTY after a few years of moving moist air. Mold city. The straight metal tubing seems to have less problem with that.

I've replaced a bunch of Broan/Nutones over the years, but never any of the Panasonics. I highly suggest making sure you can get a drop-in replacement kit for whatever model you choose, you don't want to have to rip out part of the ceiling in the future to replace the unit.
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