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  1. #1
    Join Date
    Aug 2015
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    ? On heat and cool forced air 2 register vent 1 low second high up

    I'm looking to redo my heat and cool in my house but I would like to know more about how the heat and cool work. New houses now have a register vent on the bottom and one on the top of the wall. I know and understand why as heat rises and cool air falls. I would like to understand how it works. Are there 2 ducts running up the wall or one running up the wall and there is a cutoff to each vent? If anyone can explain or have a link on how they work that would be great thanks

  2. #2
    Join Date
    Aug 2001
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    forney texas
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    ? On heat and cool forced air 2 register vent 1 low second high up

    There are a couple of ways you can make a system work in that configuration


    Sent from my iPhone using Tapatalk

  3. #3
    Join Date
    Aug 2015
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    Thread Starter
    Ok so let's say I have a 4 ton unit forced air. How does it work? What's the best option running one duct up the wall but how does either vent know if it's heat or cool. Is there a temperature thermometer on the vents to close one and open the other if it's heat or cool or both vents will blow out heat and if it's cool both will blow out cool? Let's say I have a brand new 4 ton unit. My vents are on the bottom. What's the best option to add a top vent and have it work if cool come out on top and heat come out on bottom?

  4. #4
    Join Date
    Nov 2006
    Location
    Athens, Ohio
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    Why did you post in the General forum instead of the AOP forum that you used in the past? That would be the appropriate place since you are Asking Our Pros.
    AOP Rules: Rules For Equipment Owners.

    Free online load calculator: http://www.loadcalc.net/


    There = not here. Their = possessive pronoun. They're = they are
    It's = contraction of it is. Its = the possessive form of it
    Too = also. To = expressing motion. Two = 2
    Then = after that, next. Than = indicates a comparison.
    Questions should end with a question mark "?" Statements end with a period "."

  5. #5
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    Aug 2015
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    Thread Starter
    i haven't been back here in awhile. i seen general discussion so i thought to post it here which i guess was a mistake. sorry i will post it there now

  6. #6
    Join Date
    May 2006
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    Maby he forgot
    ya such a hard ass kidding

  7. #7
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    Aug 2015
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    Thread Starter
    Quote Originally Posted by pctech View Post
    Maby he forgot
    ya such a hard ass kidding
    Yes i made a mistake. i posted this in the AOP forum but no response. I just want to learn more about how these 2 vents work when you a handler

  8. #8
    Join Date
    Aug 2001
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    forney texas
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    You need motorized dampers for one thing


    Sent from my iPhone using Tapatalk

  9. #9
    Join Date
    Mar 2016
    Location
    Dayton Oh
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    i bet one is supply air and one is return air.

    Unless you are building the house yourself, i have never seen the setup you are talking about. You talking about adding twice the cost to your duct design and install.

  10. Likes acmanko liked this post
  11. #10
    Join Date
    Aug 2015
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    Thread Starter
    Thanks

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