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  1. #1
    Join Date
    Jan 2007
    Posts
    3

    cheap air exchanger

    Would anybody know a less expensive way for fresh air in a home? (Without opening the windows) I have talked to a few guy in the business and recommended a 3-4 inch plastic pipe with damper ran from the cold air return to the outside. Would this really work? The home already has a electronic air cleaner and UV lights. thank you

  2. #2
    Join Date
    Jan 2004
    Location
    Lancaster PA
    Posts
    68,058
    Yes, a 4, 5, or 6" pipe will work.
    Has to be set up right, or you'll have a high cooling, and heating bill from bringing in too much fresh air.
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    How many times must one fix something before it is fixed?

  3. #3
    Join Date
    Nov 2000
    Location
    Eastern PA
    Posts
    68,944
    Just remember that any outside air your system brings in must be added to the load of your systems need to condition. That is going to cost you in energy usage.

    I am not against bringing in unconditioned fresh air at all, but there is no such thing as doing this cheaply. Asking for a cheap air exchanger is like asking for a cheap diamond. You're either going to pay for the real thing or get something that is not really worth anything.
    Government is a disease...
    ...masquerading as its own cure…
    Ecclesiastes 10:2 NIV


  4. #4
    Join Date
    Jun 2001
    Location
    Louisville, KY
    Posts
    12,189
    A friend of mine put a 4" fresh air pipe with power open damper on his system last year. His heating bills dropped and the window leakage/drafts were eliminated.

    If done right, outdoor air is a good thing.
    Perhaps you should have read the instructions before calling.

  5. #5
    Join Date
    Jan 2004
    Location
    Lancaster PA
    Posts
    68,058
    Quote Originally Posted by jrbenny View Post

    If done right,
    Thats the key to anything.
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    How-to-apply-for-Professional

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

  6. #6
    Join Date
    Dec 2006
    Location
    New Jersey
    Posts
    747
    ok are u looking for the air for combustion or u want it to act as a economizer so when its below 70 outside and u want fresh air it will bring it in?

  7. #7
    I'm looking too... Tech told me this could eliminate my negative pressure problem?

  8. #8
    Join Date
    Nov 2004
    Location
    SW FL
    Posts
    6,286

    Confused Leave out the _Cheap_ in HX

    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

  9. #9
    Join Date
    Feb 2003
    Location
    Huntsville,AL
    Posts
    4,125
    YOU are located in _______ ?

    do you have high humidity much of the time?
    do you have high ______ ?
    harvest rainwater,make SHADE,R75/50/30= roof/wall/floor, use HVAC mastic,caulk all wall seams!

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