Can Anyone Explain New Ductwork Layout? - HVAC - DIY Chatroom Home Improvement Forum

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Old 08-30-2010, 10:22 PM   #1
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can anyone explain new ductwork layout?

I got new ductwork after a fire remediation and the layout is not the same as the original. Both layouts had a large main duct down the center of the house but there the similarity ends. Each register in the new layout is served by a dedicated duct from the main duct. This has created lots of different size parallel branch ducts serving single registers ... ofter less than a foot apart. The original system, in contrast, used larger branch ducts feeding many registers.

Can anybody shed some light on the new layout? It seems counter intuitive to me and must require more labor and materials to implement. And wouldn't it be less flexible in balancing? I really curious about this. Thanks,


ps: this is all rectangular, internal insulation ductwork.


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Old 09-01-2010, 04:01 AM   #2
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Actually, its easier to balance when each run is an individual supply.

While it is more labor involved. Its the better way of doing it.


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