Dense Packed Ducts

Return ducts used floor/ceiling joist and balloon frame wall cavities for return air. Once the walls were insulated the furnace suffocated and pulled all return air from the basement. The worst case CAZ was -12.3pa causing the furnace to backdraft and the basement to reach 97ppm of CO.

Views: 235

Comment

You need to be a member of Home Energy Pros to add comments!

Join Home Energy Pros

Comment by Joseph J. Ilacqua on November 30, 2012 at 11:50am

Yes in my location in upstate NY this is a common practice. Even more common while dense packing tuck under garage ceilings. Be carefull and beware. That is why we do constant pre and post job inspections. Sometimes even with a great inspection these can be missed. Learn from someones else's mistakes and try not to make the same one.

Home Energy Pros

Home Energy Pros was founded by the developers of Home Energy Saver Pro (sponsored by the U.S. Department of Energy,) and brought to you in partnership with Home Energy magazine.

Latest Activity

Nate Adams's discussion was featured
5 hours ago
Bud Poll replied to Bud Poll's discussion CO poisoning in Yarmouth Maine
"Hi Chad, I sure would like to hear the follow-up on what caused the CO issue down there.  As…"
8 hours ago
Chad Mcaulife replied to Bud Poll's discussion CO poisoning in Yarmouth Maine
"I got a call yesterday from a homeowner who had a direct vent furnace installed a year ago and she…"
9 hours ago
Windzer Pierre-Louis replied to Matthew P's discussion Needed: Gas Detector and CO Detector. What do you recommend?
"Matt, I am new to the industry, less than 6 months. I love the mission of the industry; to bring…"
9 hours ago
Todd Collins replied to Nate Adams's discussion One Knob and the Pain That Inspired It
"Home performance is about comfort and energy savings.  We are working on a document about…"
10 hours ago
tedkidd commented on Shawna Henderson's blog post Sales funnels are funny shaped things
"Nice Venn Diagram. Product sales vs Consultative Solutions sales. We like the Sandler Selling…"
10 hours ago
Andrew Aliferis replied to Patrick Michaelyan's discussion Proper means to "plug" flue pipes after testing gas appliances.
"Patrick, These are what works for the programs I am involved in New Jersey and Pennsylvania. They…"
10 hours ago
Profile IconTravis Thom and Amita Singh joined Home Energy Pros
11 hours ago

© 2015   Created by Lawrence Berkeley National Laboratory.

Badges  |  Report an Issue  |  Terms of Service