Repositioning/moving existing HVAC ducts in attic


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Old 10-23-10, 09:53 AM
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Repositioning/moving existing HVAC ducts in attic

I want to move my attic stairs but the only place I can move them have big HVAC ducts that were installed at a 45 degree angle. To place the stairs, all I need to do is add a few feet of duct and change the angle from 45 to 90 degrees. But, I know NOTHING about how to go about doing this....tools needed, things to watch out for, type of ducting to use, etc. HELP! Is there a site with step-by-step instructions for us dummies?
 
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Old 10-24-10, 09:30 PM
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Hard metal duct or flex ?
 
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Old 10-25-10, 03:51 PM
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My house was build in 1964 and unfortunately has a combination of hard and flex ducts.

Thanks so much for the response!
 
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Old 10-25-10, 08:01 PM
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Flex should be easy, just get the same type/size of the duct(silver color and insulated one is better) and cut into it and connect (use metal connector- you can get them at Home depot) them together. Avoid 90 degree turn, make a smooth circular/curved loop without any sharp turns will be the best. Hard duct is a different story, needs some design work in advance.
 
 

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