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  1. #1
    Jerome W. Young's Avatar
    Jerome W. Young Guest

    Default thermostatically controlled fan in garage

    ANyone ever seen this application? I dont know it looks alright to me. it just sends the air into the attic. There are no gas aplliances in the garage. See anything I am missing?

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  2. #2
    Join Date
    Mar 2007
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    Default Re: thermostatically controlled fan in garage

    Garage/living space separation. Would speedily spread a garage fire into the attic.

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  3. #3
    Jim Zborowski's Avatar
    Jim Zborowski Guest

    Wink Re: thermostatically controlled fan in garage

    Have to agree.
    Should work very well for spreading toxic fumes from stored chemicals such as pesticides, gasoline vapors, etc.
    Should also be quite efficient in supplying oxygen to attic fires.


  4. #4
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  5. #5
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    Default Re: thermostatically controlled fan in garage

    Quote Originally Posted by Gunnar Alquist View Post
    Garage/living space separation. Would speedily spread a garage fire into the attic.
    The solution to this would be to continue the garage house wall up through the attic to the roof sheathing, creating a draftstop wall. Then you could remove the entire garage ceiling and it would still be okay.

    Of course, though, you would want a well sealed door to the house as, if this fan is on when the garage doors are down, it will de-pressurize the garage, sucking conditioned air around the house door into the garage. And that conditioned air being sucked from the house would need to be replenished into the house space through cracks and other openings, which means pulling in unconditioned outside air into the interior, just so it can be conditioned, then sent back outdoors through the garage.

    Not very energy efficient, among other things.

    Jerry Peck, Construction / Litigation Consultant
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