Need help - How to install HVAC ducting pass through firewall


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Old 05-29-24, 03:27 PM
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Need help - How to install HVAC ducting pass through firewall

So the 12" ducting that passes through the firewall from the garage into the attic broke right inside the attic side. I've temporarily fixed it but it needs to be redone. There is the return ducting coming through wall and it's all recently done and looks good but because it's wrapped in the insulated foil I can't see what they used. It's passing through a piece of sheet metal attached to the wall. I will attach photos.

Anyway... so I'm anticipating getting a piece of sheet metal. attaching it to the wall on the garage side, cutting a hole in it and using something like one of these links below - but I'm not sure if that's the proper way to do it. Please advise! Thanks!!!!

Master Flow 12 in. Starting Collar Take Off - Snap Together SCF12 - The Home Depot

Master Flow 12 in. Air-Tite Take-Off ATTO12 - The Home Depot











 
 

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