Has anyone ever heard of blower door depressurization effecting infants ears?  Is there a place where one could find out more about the subject?  Met a respectable individual that would not perform door testing with homes that have infants present.  Seems like something that could be of concern.  Thanks in advance for your thoughts and info.

Views: 168

Reply to This

Replies to This Discussion

Here is a chart I did showing the pressures:

Unit to pascal 25 Pa 50 Pa 75 Pa
1 atmosphere = 101,325 Pa 0.000 247 0.000 49 0.000 74
1 bar = 100,000 Pa 0.000 25 0.000 50 0.000 75
1 PSI = 6,894.76 Pa 0.003 63 0.007 25 0.0108
1 in Hg = 3,386 Pa 0.007 0.015 0.022
1 in H2O = 249 Pa 0.10 0.20 0.30
1 mm Hg = 133 Pa 0.19 0.38 0.56
1 millibar = 100 Pa 0.25 0.50 0.75
1 PSF = 47.88 Pa 0.52 1.05 1.56

That is not enough to affect a baby (nor break window seals, etc...) but with that said I also would not want to do a blower door test with an infant or very small child in the house as one is not sure what containiments one might be pulling in, nor how healthy that infant is.

I agree with Sean about "the other contaminants" and in general, whether they understand how slight 50pa is or not, that doesn't stop them from telling everyone you did bad.

But, here is another example of how small 50 pa really is.  When you drive to a higher elevation, you can feel your ears pop.  A change in elevation is understood to be associated with a change in pressure.  Walk from a basement to the second floor and you will experience about 50 pa decrease in pressure.  Walk back to the basement and it increases by the same.

Our manometers cannot see this shift in atmospheric pressure, their design does not allow it, but that is another thread.  But explaining to a home owner that the 50 pa is about the same as top to bottom of a 2-story house might help.

Atmospheric pressure near sea level decreases about 3.5 pa per foot you go up.

Bud

Nice point Bud & I might have to actually add that to the article assuming you don't mind

Not at all.

Bud

RSS

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.  Home Energy Pros is sponsored by the Better Buildings Residential Network.

Latest Activity

Dale Pickard replied to Rod Fox's discussion Does altitude affect AFUE? or just the input/output BTUs?
"Excellent reply Hans. I think that there isnt' a good general answer to this question but that…"
2 hours ago
Mary Desilva posted blog posts
3 hours ago
David Heslam joined David Eggleton's group
Thumbnail

1000 Home Challenge

Linda Wigington distinguished between deep retrofits & deep energy reductions, thus expanding…See More
4 hours ago
Jose Macho commented on Charlie Hewitt's blog post Revisiting Heat Pump Water Heaters
"I am aware of homeowner dissatisfaction of hybrid units not performing due to location,…"
5 hours ago
KC Brown added a discussion to the group Job Board
Thumbnail

Job Opening: SR. ENERGY ENGINEER - CLEAResult, Energy Efficiency Leader (Pennsylvania)

POSITION:  Sr. Energy EngineerREFERNCE CODE:  2015-2197 JOB DESCRIPTION:CLEAResult is a leading…See More
7 hours ago
KC Brown joined Diane Chojnowski's group
Thumbnail

Job Board

This group is for posting jobs related to all aspects of the home performance industry including…See More
7 hours ago
Profile IconAdrienne DeAngelo, KC Brown and Ravi Malhotra joined Home Energy Pros
8 hours ago
David A. Minor posted a blog post

Rainwater use

I have directed my water from my gutters to water my Garden, my Grape vines, and my Hostas that…See More
10 hours ago

© 2015   Created by Lawrence Berkeley National Laboratory.

Badges  |  Report an Issue  |  Terms of Service