Open a duct in the middle of a run


Old 10-20-19, 05:40 PM
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Join Date: Nov 2002
Location: Northern Virginia
Posts: 712
Received 4 Votes on 3 Posts
Open a duct in the middle of a run

Not a pro, so i'll probably use the wrong words, sorry.

We have a duct that runs for about 18 feet, starting at the furnace and leading to a room. It's about 8 inches in diameter, a straight shot with no branches.

I need to open the duct for cleanout purposes, but i can't get to the origin of the duct. I can see the duct is in sections held together with sheet metal screws. I removed some screws in an attempt to remove a section, but because of the way a tapered end fits into the back of the next section i can't remove a section intact.

Am i missing something? Can i cut into the duct to create an inspection hatch that would allow me to run a duct brush? If i did can i repair the opening so the duct is intact again?

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Old 10-22-19, 01:32 PM
airman.1994's Avatar
Join Date: Dec 2005
Location: VA
Posts: 5,782
Received 6 Votes on 6 Posts
You don't need to take the duct apart.

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