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Type: Posts; User: brhino14

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    Brhino14. "stick" the rule of thumb, they don't...

    Brhino14. "stick" the rule of thumb, they don't work.

    note;
    a 14" diameter pipe has an area of approx 154 "
    a 12" diameter = 112"

    a 6 " diameter = 28"
    a 5" diameter = 20"
    You should be able...
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    52 minumum. Theres no such thing as a rule of...

    52 minumum.

    Theres no such thing as a rule of thumb.

    Call a professional. This is not a DIY site.

    I did call a professional but I am seeing how many more 8" lines can be installed on this...
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    Take offs on 14" trunk line

    What is the rule of thumb for how many take offs can you have on a 14" trunk line? Also, how about a 12" trunk line?

    Thank You
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    Thank you for your advice. I have one of the...

    Thank you for your advice. I have one of the service guys coming tomorrow. I just wanted to have some knowledge of what I should expect to hear. The duct that was installed is 12" ID and 10" ID. ...
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    It is the flex duct for the return which is the...

    It is the flex duct for the return which is the exact same brand you can buy at Lowes.
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    There is 10" round duct for the 12x12 return and...

    There is 10" round duct for the 12x12 return and the 12" round duct for the 12x24 return. If the motor should be making noise, why would I only hear it in the smaller return? From the smaller...
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    I hear some whistling but it is the motor I hear...

    I hear some whistling but it is the motor I hear more of. The 1st return is a 12" round flex duct with the 2nd return being 10" round flex duct.
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    Blower motor noise in my return

    Recently I had a contractor install a Bryant 3 ton heat pump for me. It is very quiet except for my 2nd return. I can hear the blower motor and it is loud in the 2nd return! The 1st return (12x24)...
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