Results 1 to 6 of 6
  1. #1
    Join Date
    May 2005
    Posts
    44
    Ceiling registers in the basement

    What would be the good size to go with....

    12x4
    12x2 1/2
    10x2 1/4
    10x1 1/5

    Basement zone will have 5 x 6" supplies.

    I would like bend diffusers to push hot air down to the floor. Return is 7" from the floor. 12x4 is nice not sure will have static to push air that low.







  2. #2
    Join Date
    Oct 2005
    Posts
    921

    Flip a coin

    Sounds like you have not done your home work yet.

  3. #3
    Join Date
    Dec 2005
    Location
    Newton, NJ
    Posts
    299
    Are those the sizes Home Depot sells?

  4. #4
    Join Date
    Jan 2006
    Posts
    214
    are you reading your tape measure correctly?why are you bending the registers.no such sizes involving fraction 1/5.

  5. #5
    Join Date
    May 2005
    Posts
    44
    Ok

    Long day, think before you post.... ( Duh! )

    I meant to ask about ceiling boot sizes for 6" supplies.
    a) 2 1/4 x 12
    b) 3 1/4 x 10
    c) 4 x 10
    d) 4 x 12

    First: I have an account with Johnson Supply
    I need to pick up some #820 weyes, so I thought i would pick some boots too.






  6. #6
    Join Date
    Aug 2002
    Location
    Office and warehouse in both Crystal River & New Port Richey ,FL
    Posts
    18,836
    You need the mfrs. data to select the correct size .

    Ask at Johnston.

    Select based on cfms(actual needed if you have a Manual J,velocity(600feet per minute),and the throw(how far the air will travel),plus what is the PD(pressure drop of the register).

    Mfr. may have several types that could be used,selct the best for what you need.


    In general 12X4 sounds like the smallest I'd use for 6" ronud duct.

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