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  1. #1
    Join Date
    Jan 2010
    Posts
    1

    Default Placement of bath fan

    Can i place a bathroom exhaust fan in the shower ceiling? The ceiling is 8 feet tall in the shower stall.
    Thank for your help...

  2. #2
    Join Date
    Dec 2009
    Location
    Casper, Wyoming
    Posts
    159

    Default Re: Placement of bath fan

    We have our fan in the ceiling of our shower stall. I think it depends on the fan. The fan you select should note whether or not it is right for installation in a shower stall.
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  3. #3
    Join Date
    Jun 2007
    Location
    Shamokin, Pa.
    Posts
    645

    Default Re: Placement of bath fan

    Quote Originally Posted by qualityfirsth View Post
    Can i place a bathroom exhaust fan in the shower ceiling? The ceiling is 8 feet tall in the shower stall.
    Thank for your help...
    Yes it can.
    Remember though vent fans installed directly above showers must be GFCI protected.

  4. #4
    Join Date
    Sep 2009
    Posts
    5

    Default Re: Placement of bath fan

    Same topic - different question. I have two bathrooms that share a common wall. Can I gang the fans on the same exhaust to the outside world?

  5. #5
    Join Date
    Jun 2007
    Location
    Shamokin, Pa.
    Posts
    645

    Default Re: Placement of bath fan

    Quote Originally Posted by punintended View Post
    Same topic - different question. I have two bathrooms that share a common wall. Can I gang the fans on the same exhaust to the outside world?
    Good question. Odds are that both fans would not be in use at the same time. But if they were, and certainly could be, would the duct work handle the double air flow. Since there is little if no resistance other than a flapper, methinks the size of the ductwork could handle the flow. But I could be wrong. Boy, was that last sentence difficult to type.
    Any code sleuth's out there?

  6. #6

    Default Re: Placement of bath fan

    No you may not. The listing requires dedicated exhaust ducting to the outdoors, as do the model codes. Spread of fire, draft blocking, etc.

  7. #7
    Join Date
    Aug 2007
    Location
    The Great White North
    Posts
    4,045

    Default Re: Placement of bath fan

    Many times bath exhaust vents will be tied together into a central system.

    If you are using two individual exhaust fans and would like to use a common duct then you need to ensure the fans have backdraft dampers and the duct size is a minimum the same volume as a 4 inch --- preferably larger --- so as to have minimum static pressure in the event both are running at the same time.

    Otherwise you could have one large inline fan with a " T " running to vent grills in each bathroom .
    "" an ounce of perception -- a pound of obscure "
    - Rush

  8. #8
    Join Date
    Jun 2007
    Location
    Shamokin, Pa.
    Posts
    645

    Default Re: Placement of bath fan

    Quote Originally Posted by canuk View Post
    Many times bath exhaust vents will be tied together into a central system.

    If you are using two individual exhaust fans and would like to use a common duct then you need to ensure the fans have backdraft dampers and the duct size is a minimum the same volume as a 4 inch --- preferably larger --- so as to have minimum static pressure in the event both are running at the same time.

    Otherwise you could have one large inline fan with a " T " running to vent grills in each bathroom .
    Sounds good to me !!!

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