Quote:
Originally Posted by Dave Lane
This is not true I have a 6" duct I move 1000 cfm through. It has an inline fan but you can move huge amounts of air through ducts if you want.
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Dude you can think what you want but until you have been to school and educated yourself you will not understand. You can believe what you want but there is a huge difference between cfm and fps. You are moving are at 1000 fps but you CANNOT move 1000 cfm of air through a 6" round piece of duct.
fps = feet per second
cfm = cubic foot minute
When you mess up your system and it costs you 10k to replace it and they tell you that your duct is all blown apart and needs to be replaced for an addition 2500 to 3000. Maybe then you will understand.