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  1. #14
    Join Date
    Sep 2009
    Location
    Arnold mo
    Posts
    3,967
    Quote Originally Posted by kdean1 View Post
    Again, I say yes to the 1" pre-filter. The purpose is to catch the big dirt before it loads up the expensive media filter. So you spend $4-6/year for the 1" filters and it doubles (or more) the life of the media filter. Your installer is right, sort of. You don't NEED the 1" filter but it WILL benefit you.
    I agree.
    An answer without a question is meaningless.
    Information without understanding is useless.
    You can lead a horse to water............
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  2. #15
    Join Date
    Feb 2009
    Location
    Portland OR
    Posts
    1,990
    We install a 4" pleated MERV 11 filter(Honeywell F100) on every job, it greatly reduces our warranties because most of them are due to not changing filters often enough or inadequate filtration.
    Check out my YouTube channel - http://www.youtube.com/user/skyheating1 We have customer testimonials, product reviews and more!
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  3. #16
    Join Date
    Feb 2009
    Location
    Tallahassee, FL
    Posts
    6,048
    Quote Originally Posted by BaldLoonie View Post
    A 1" pleated filter before a media filter will grossly increase the restriction.
    X2

    By adding a prefilter to a media cleaner you have effectively missed out on the benefit of the aprilaire. (Airflow)

    I used to always install one myself until I finally figured out I was simulating a dirty coil trying to keep it clean.

  4. #17
    Join Date
    Sep 2009
    Location
    Arnold mo
    Posts
    3,967
    Quote Originally Posted by SBKold View Post
    X2

    By adding a prefilter to a media cleaner you have effectively missed out on the benefit of the aprilaire. (Airflow)

    I used to always install one myself until I finally figured out I was simulating a dirty coil trying to keep it clean.
    I don't recall anyone here who advised placing a pleated filter before a media filter. The advice was to install a cheap fiberglass filter before the media filter to help extend the life of the media filter.
    An answer without a question is meaningless.
    Information without understanding is useless.
    You can lead a horse to water............
    http://www.mohomeenergyaudits.com

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