Tricks On Installing 5" Runs - HVAC - DIY Chatroom Home Improvement Forum

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Old 09-11-2012, 07:35 AM   #1
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Tricks on installing 5" runs

I was wondering if some people have any tricks on installing 5" round HVAC pipe. I have a few end boots that are about 4 feet from the main trunk. Its impossible to cut a length to fit and squeeze it on. The only way i can almost get it is using an adjustable elbow and twist the elbow while moving the straight pipe.

Any tricks some may have for this?


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Old 09-11-2012, 11:18 AM   #2
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cut your piece to length. install boot on end of pipe. install pipe to main and reattach boot, or fasten pipe to main first then attach boot. sometimes you can bend the boot down to get the pipe in but that usually distorts everything in the process.


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Old 09-12-2012, 05:30 PM   #3
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Cut hole in ductwork trunk, insta 5" takeoff, measure piece of 5" pipe from takeoff to boot allowing the proper amount for the connection, cut the 5" pipe to size, remove boot completely put the whole assembly together and push boot back in place and nail or screw in secure. Install piece of perforated strapping in the middle of the assembly for pipe support.

PS: Keep the 5" pipe seam facing away from view, it looks more PRO.
No Warranty Means- If it breaks in half you get to keep both halves.
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