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Thread: New Code

  1. #1
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    New Code

    I have been having estimates to replace my A/C along with all new duck work. One of my contractors bidding on the job mentioned to me that, according to the new code, every bedroom needs to have a return line. Is that true? I am in Tampa Bay.

  2. #2
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    RETURN AIR DUCTS from All Bedrooms was first required
    for new construction more than a DECADE ago.

    The problems associated with No Bedroom Return Air path were
    first identified and tested > 18 years ago.

    Use of bedroom return air ducts is Not a " NEW " building code idea.
    Designer Dan
    It's Not Rocket Science, But It is SCIENCE with "Some Art". ___ ___ K EEP I T S IMPLE & S INCERE

    Define the Building Envelope and Perform a Detailed Load Calc: It's ALL About Windows and Make-up Air Requirements. Know Your Equipment Capabilities

  3. #3
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    CURRENT CODE

    Designer Dan
    It's Not Rocket Science, But It is SCIENCE with "Some Art". ___ ___ K EEP I T S IMPLE & S INCERE

    Define the Building Envelope and Perform a Detailed Load Calc: It's ALL About Windows and Make-up Air Requirements. Know Your Equipment Capabilities

  4. #4
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    Thread Starter
    Quote Originally Posted by dan sw fl View Post
    RETURN AIR DUCTS from All Bedrooms was first required
    for new construction more than a DECADE ago.

    The problems associated with No Bedroom Return Air path were
    first identified and tested > 18 years ago.

    Use of bedroom return air ducts is Not a " NEW " building code idea.
    Right now there is only one return duct (18 by 30) in the center of my home. That will change once I get my new system.
    Thanks

  5. #5
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    Quote Originally Posted by Thomv47 View Post
    Right now there is only
    one return duct (18 by 30) in the center of my home.
    That will change once I get my new system.

    Thanks
    I presume the noted size actually refers The Single Filter Grille.

    18" x 30" = 3.75 sq feet filter
    ________ * 300 FPM
    ________ 1,100 CFM could be handled in many systems
    ________ IF the filter is < MERV 8
    Designer Dan
    It's Not Rocket Science, But It is SCIENCE with "Some Art". ___ ___ K EEP I T S IMPLE & S INCERE

    Define the Building Envelope and Perform a Detailed Load Calc: It's ALL About Windows and Make-up Air Requirements. Know Your Equipment Capabilities

  6. #6
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    Missouri, USA
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    Also get a bid for a ductless mini split system. Might not need much backup heat in FL.

  7. #7
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    Thread Starter
    Quote Originally Posted by Thomv47 View Post
    Right now there is only one return duct (18 by 30) in the center of my home. That will change once I get my new system.
    Thanks
    Yes. It is my only return.

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