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  1. #1
    Join Date
    Nov 2006
    Posts
    33

    Are two better than one?

    I was wondering, can two 1" 20 x 25 filters be stacked side-by-side for better efficiency? I know the big Air Bear's are the way to go, but they have gotten so expensive? Thanks for any help.

  2. #2
    in life two is always bette than one hahaha

  3. #3
    Join Date
    Dec 2002
    Location
    Houston,Tx.
    Posts
    16,121
    Quote Originally Posted by Heat2Cool View Post
    in life two is always better than one hahaha
    Even in Heart Attacks?
    __________________________________________________ _______________________
    “Experience is a hard teacher because she gives the test first, the lesson afterwards". - Vernon Law

    "Never let success go to your head, and never let failure go to your heart". - Unknown

  4. #4
    Join Date
    Jan 2004
    Location
    PA
    Posts
    68,758
    Side by side would give you 40X25, or 20X50.

    If you mean 1 on top of the other. Just use 1. If you don't think the air near is worth the money for the better job it does.
    Contractor locator map

    How-to-apply-for-Professional

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

  5. #5
    Join Date
    Jul 2010
    Location
    SE Texas
    Posts
    122
    Just change the filter more often

  6. #6
    Join Date
    Aug 2010
    Location
    Quesnel, BC Canada
    Posts
    28
    If you mean one in front of the other it's best not to. Two one inch filters will create more restriction than one two incher. 

  7. #7
    Join Date
    Jul 2010
    Posts
    53
    Don't stack them one on top of the other for sure... that would create too much static drop and could really hurt the performance of your system... I would just go with the regular size filter....

    If you use 2 filters side by side, there will be a dead space in the middle that will not allow airflow... calculate out the surface area of filter from one big filter to 2 smaller filters... Bet they are not the same dimension and thus not the same performance/pressure drop

  8. #8
    Join Date
    Apr 2005
    Location
    Antioch, IL
    Posts
    35
    I hate finding RTU's with two 1"inch pleated sandwich taped together. duh all too often

  9. #9
    Join Date
    Nov 2000
    Location
    Eastern PA
    Posts
    68,974
    Quote Originally Posted by Mr Bill View Post
    Even in Heart Attacks?
    Oooh....oooh...I can answer that one; NO!
    Government is a disease...
    ...masquerading as its own cure…
    Ecclesiastes 10:2 NIV


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