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: 238

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.

Photos

Loading…
  • Add Photos
  • View All

Latest Activity

Chris Dorsi posted an event
24 minutes ago
Joe Crisara commented on Chris Laumer-Giddens's blog post A Solution for Fresh and Make-Up Air Happiness
"Great video Matt! I will pass this along to all of my students"
1 hour ago
Casey Gesell posted events
1 hour ago
Joe Crisara posted events
1 hour ago
john bustos commented on john bustos's photo
Thumbnail

20160205_171430

"Found this, and much, much more on a recent attic inspection."
1 hour ago
john bustos posted a photo
1 hour ago
Diane Chojnowski commented on Seventhwave's event Better homes video series
"You're welcome to post your videos here on Home Energy Pros."
2 hours ago
Quinn Korzeniecki replied to Quinn Korzeniecki's discussion 3 Energy Saving New Year’s Resolutions to Make in 2016
"Hi Sam, I'm glad you enjoyed the tips! I am a renter myself, so I can only follow along with…"
2 hours ago

© 2016   Created by Lawrence Berkeley National Laboratory.   Powered by

Badges  |  Report an Issue  |  Terms of Service