Thread: Reducers
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Old 03-29-2015, 03:18 PM
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Rob Rob is offline
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Originally Posted by tinnerjohn View Post
I seem to remember reading somewhere that plenum Takeoffs should have a 45 degree angle. John
We make our plenum take offs with the opening 1.5 times the area of the duct.
Depending on the rise and the width, the bottom angle can get quite steep.
If we don't like the angle (maximum 45 degrees) , we'll make the take off longer.
Sometimes have to cheat a bit on the depth if space is limited.
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