HVAC duct through a fire rated wall

Discussion in 'Remodel Forum & Blog' started by maurice53, May 29, 2011.

  1. maurice53

    maurice53 New Member

    Messages:
    8
    Location:
    Tucson, AZ
    I took a rear section of the garage and converted it to a laundry room with a wall now dividing it from the rest of the garage. This wall needs to be a fire rated wall. I am required to put HVAC register in this room. Can I put the duct through the wall and still maintain the fire rating?
  2. hj

    hj Moderator & Master Plumber Staff Member

    Messages:
    26,605
    Location:
    Cave Creek, Arizona
    quote; I am required to put HVAC register in this room.

    Usually, ABSOLUTELY NOT permitted, because that could allow carbon monoxide from a car engine to enter and circulate through the house. Many people have gotten ill, or died, when a car was idling in the garage while the exhaust gases are circulating through the house, because someone wanted a "warm garage". But if you do insist, you have to jump through a lot of hoops to do it, because it would have to have a fire damper in it with a fusible link which activates it in the event of a fire. Your installation would have to be approved by your local fire inspector before AND after it is installed.
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