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Old 05-29-2019, 02:53 PM
metalhead666 metalhead666 is offline
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Default Rectangular duct radius elbows

Is there a formula for figuring out a good radius to use. I know there is many variables like duct size and room restrictions. But is there a formula or general rule?. Maybe we could use 12/8 90 degree elbow for example
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Old 05-30-2019, 01:12 PM
tinnerjohn tinnerjohn is offline
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I've always been told 1.5 x width. 12" wide el would be 18" Radius heel radius. Maybe someone else will chime in and help us on the throat. John
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