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  1. #1
    Join Date
    Sep 2008
    Posts
    12

    Improving Hvac efficiency at the entrance doorway?

    I walked into a hotel this past summer which had a wall of air blowing down very hard right when I walked in, presumably to keep the cool air from escaping. What are those systems called? Are they effective?

    tim

  2. #2
    Join Date
    Dec 2002
    Location
    Arizona
    Posts
    4,341
    Air Door/Curtain, and yes they work.
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  3. #3
    John Culpepper's Avatar
    John Culpepper is offline CHANGE YOUR EMAIL ADDRESS Professional Member*
    Join Date
    Oct 2007
    Location
    Austin Texas
    Posts
    1,776
    Air curtain. They also limit the amount of insects and trash that may blow in with automatic doors.
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