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Does anybody have experience making / installing a turning vane / scoop / wedge in ducting to improve air flow. I have attached a sketch to demonstrate what I am trying to accomplish.

The sketch is of the supply feeding the overhead duct. Any help/ideas are appreciated. I would also like to do something similar in the supply plenum.

Thanks.
 

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Thanks. Any idea where to get these/ make my self / have made? I've been calling hvac shops in the Boston area and they think I'm crazy when I ask.
 

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lol .. we use them all the time in canada ,, actually the eng, specify on some drawings .. i say make it up yurself out of some flat joist liner put a 90degree bend on the sides and notch if needede to get radius ,, screw into place from top n bottom if u can get access
 

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What you drew is not a turning vane. A turning vane would not be the full length/height of the duct like you have it. What you have drawn will help though, but turning vanes would help more.

http://www.aero-dyne.net/
 
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