No return air box installed

Reply

  #1  
Old 02-21-14, 08:29 PM
Member
Thread Starter
Join Date: Dec 2008
Location: Virginia
Posts: 77
Received 0 Votes on 0 Posts
No return air box installed

The return air for my downstairs system is located in the side wall by the stairs. I was changing the filter and noticed that there is no metal box for the filter to be placed in. The metal grill is the only thing that holds the filter in place. When you open the grill door and remove the filter, there is all the open space under the stairs. You can see the return flex duct coming out of the floor. It is very dirty in that space. Did someone forget to install the return air properly? Is this an easy fix or should it be left to a professional?
 
Sponsored Links
  #2  
Old 02-22-14, 03:21 AM
Member
Join Date: Mar 2006
Location: Wet side of Washington state.
Posts: 18,493
Received 33 Votes on 25 Posts
What you have is not uncommon. In my opinion it is not right but it is an accepted cost-cutting move. I suggest that you vacuum out the area as best as you can and then live with it. Retro-fitting would be expensive and with little gain.
 
  #3  
Old 02-22-14, 08:15 AM
Member
Join Date: Oct 2008
Location: New England
Posts: 10,483
Received 33 Votes on 30 Posts
My concern would be the connection between that open space and everywhere else. One of the very important steps in reducing energy costs is to be sure supply and return paths do not communicate with the great outdoors. Even a simple panned return that uses just one wall cavity is usually drawing air from all over. As an example, mentally flip that cavity over and fill it with water, it would pour out all over the place. And some of those leaks would undoubtedly connect to the attic or outside.

I can't see how that was constructed, but if they took the shortcut you have found, they most likely did not try to air seal and may not be completely drywalled. Since all ducts are supposed to be sealed, this sounds like a big hole to me and correcting it could reduce your energy costs.

Bud
 
  #4  
Old 02-22-14, 07:03 PM
Member
Thread Starter
Join Date: Dec 2008
Location: Virginia
Posts: 77
Received 0 Votes on 0 Posts
Thanks for the info, I will clean out the area and then get a professional to look at it.
 
Reply

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


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