Results 1 to 5 of 5
  1. #1
    Join Date
    Dec 2005
    Posts
    5
    Post Likes

    Calculating effective length

    Just unsure how to treat a vertical duct in a residential forced air system design.

  2. #2
    Join Date
    Jan 2004
    Location
    PA
    Posts
    77,236
    Post Likes
    Is it going to be more than 20 long?
    Contractor locator map

    How-to-apply-for-Professional

    How many times must one fix something before it is fixed?

  3. #3
    Join Date
    Dec 2005
    Posts
    5
    Post Likes
    Thread Starter
    Quote Originally Posted by beenthere View Post
    Is it going to be more than 20 long?
    No

  4. #4
    Join Date
    Jan 2004
    Location
    PA
    Posts
    77,236
    Post Likes
    Quote Originally Posted by ero View Post
    No
    Then no need to treat it any different than a horizontal duct.
    Contractor locator map

    How-to-apply-for-Professional

    How many times must one fix something before it is fixed?

  5. #5
    Join Date
    Dec 2005
    Posts
    5
    Post Likes
    Thread Starter
    Quote Originally Posted by beenthere View Post
    Then no need to treat it any different than a horizontal duct.
    Thank you

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  

Related Forums

Plumbing Talks | Contractor MagazineThe place where Electrical professionals meet.