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.

Videos

  • Add Videos
  • View All

Twitter

Latest Activity

Quinn Korzeniecki posted a discussion

Five Retrotec Products Added to BPI Product List

The Building Performance Institute, Inc. (BPI) has recognized five new products in its Product…See More
44 minutes ago
Tom White's video was featured

New York energy policy & North American Passive House Network Conference

New York is increasing its energy standards and is investigating the possibility of implementing the Passive House Standard for new construction and retrofit projects. Interviewee: Ken Levenson, with NY Passive House Assoc and 475.
1 hour ago
Profile IconRichard Hale, Joseph Schulman, Carol W and 1 more joined Home Energy Pros
1 hour ago
miguel pace posted a blog post

Choosing the right Cooling Tower Fan

The cooling towers are often found in industries and manufacturing units, which are basically the…See More
5 hours ago
John Nicholas commented on John Nicholas's blog post Indoor Air - How do you measure if it is Healthy?
"Tom,   Here it is!"
10 hours ago
John Nicholas commented on John Nicholas's blog post Indoor Air - How do you measure if it is Healthy?
"The issue of Indoor Air Quality in a home comes up very regularly for a Home Energy Auditor. People…"
10 hours ago
tedkidd replied to Michael D'Arcy's discussion Small video we created to promote Home Performance
"Great! So those are results measured a year after work, not modeled? That makes you a rare…"
15 hours ago
Therma-HEXX posted a blog post

The ABCs of Snowmelting

Read this great article about snowmelting systems …See More
16 hours ago

© 2016   Created by Lawrence Berkeley National Laboratory.   Powered by

Badges  |  Report an Issue  |  Terms of Service