How big of a hole for these returns??


  #1  
Old 06-19-17, 01:18 PM
R
Member
Thread Starter
Join Date: Sep 2008
Location: MA
Posts: 638
Received 0 Upvotes on 0 Posts
How big of a hole for these returns??

As you can see from the picture below, three 12 x 8 holes were cut directly into the supply duct to fit the 12x8 grills.

I plan to place two return vents on the sides of the soffit but I am not sure how big of a hole I should cut in the return duct.

Would I be safe cutting Two 12x8 holes like the ones for the supply?
I realize typically the return holes are only 6" so would that throw off the circulation upstairs?

Name:  20170619_155232.jpg
Views: 153
Size:  18.9 KBName:  20170619_155241.jpg
Views: 142
Size:  20.6 KB
 
 

Thread Tools
Search this Thread
 
Ask a Question
Question Title:
Description:
Your question will be posted in: