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buck545 05-29-2012 04:24 PM

size of duct
want to install a 2ton ac blower what size should my first pieces of main duct be

Marty S. 05-29-2012 06:04 PM

Depends on the total equivalent length of the duct system. That includes adding length for turns,boots,takeoffs, offsets ect. 8x22 would be good in most homes.

TarheelTerp 05-29-2012 06:11 PM

is the equipment at one end of the house? \/->|--->|--->|--->|--->|
or is it in the middle? |<---|<---\/--->|--->|--->|

buck545 05-29-2012 07:15 PM

its a ranch house, so i'm going to put all the equiment at one end and just have one straight run....after the plunum no more than 24 house is only 39 long

buck545 05-29-2012 07:18 PM

im goig to have at the most 5 six inch supplys and 2 five inch supplys for bathrooms and 1 eight inch for some air flow in basement, with return

beenthere 05-29-2012 07:39 PM

I'd make those 6" supplies, 7".

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