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  1. #1
    Join Date
    Nov 2004
    Location
    Atlanta, Ga. burbs
    Posts
    281
    This is a general question. I just want to get a leg up on it before I call the HVAC company.


    The house-
    Six years old we just bought it. Two story. Two heat pumps. Flexi duct.

    Situation-
    Upstairs
    Daughters upstairs room is very cold
    Sons adjoining room is way too hot
    not sure about the other bedrooms

    Downstairs
    Master bedroom cold
    Master bathroom cold
    other rooms adequate


    I closed my sons vent off to see if that would help with daughters room.

    I don't know how the previous owners tolerated this. I would assume that in the summer the reverse will be too hot and too cold?

    Any thoughts off the top of your head?

  2. #2
    Join Date
    Nov 2004
    Location
    SW FL
    Posts
    6,234

    Question What's Next

    Originally posted by west_seth
    house- ... six years old
    .. Two story. Two heat pumps. Flexi duct.
    Situation- Upstairs
    Daughters upstairs room is very cold
    Sons adjoining room is way too hot
    not sure about the other bedrooms

    Any thoughts off the top of your head?
    No.
    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

  3. #3
    Join Date
    Feb 2003
    Location
    S.W. PA
    Posts
    3,298
    are there dampers on each run? are they open? do you have electric strips ? are they coming on?
    are your filters clean? what it temp diff across coil?

  4. #4
    Join Date
    Nov 2005
    Location
    PortChester N.Y.
    Posts
    135
    Try to have system ,Balanced. If no ! Have reputable contractor install , hand dampers and proceed from there.

  5. #5
    check runs for dampers

  6. #6
    Are both rooms with same exposure, i.e. North, East, etc...
    Does house have an attic. Ceiling insulation over both bedrooms the same? any obvious air leaks around windows?
    Does airflow from registers appear to be the same? Is air coming out of registers at same temperature in both rooms (I use alcohol soil thermometers with metal jacket to measure register temps in my house. They cost less than 10 bucks)?
    I presume doors to both rooms are kept closed. Are there return air registers in both rooms? Or are the gaps at bottom of doors in both rooms for return air the same?

    You can also get a rough idea of register airflow using a bag test, i.e. time it takes to fill a garbage bag placed over register.

    One possible noisy solution: install a through the wall fan to increase flow to cold room (assuming rooms are share a common wall).

    These are some of the things you can do before you call the professionals.

  7. #7
    Join Date
    Jan 2006
    Posts
    36
    Check to see if the dampers are closed on the runs to the cold rooms.

  8. #8
    Join Date
    Mar 2005
    Location
    South/West of Quebec in the other part of Canada
    Posts
    2,331
    do you feel air come out of your daugters room?

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