TJ Ewing
  • Male
  • Maple City, MI
  • United States
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TJ Ewing's Friends

  • Elizabeth Russell
  • allen p tanner
  • Steven Lewis
  • Fluke Thermal Imaging
  • Michael Stuart
  • Judi Lyall
  • Chris Laumer-Giddens
  • John Nicholas
  • Allison A. Bailes III
 

TJ Ewing's Page

Profile Information

Company
Empowerment Energy Analysts
Professional Certification
CEA (AEE), LEED GA, RESNET HERS Rater, Level 1 Thermographer, BPI Building Analyst, BPI Envelope Professional
Professional Interests
Building Science, energy conservation, efficiency, thermography, Passive House construction, measurement & verification, education.
Website URL
http://empowermentenergy.com
Twitter ID
EmpowermentEng

Comment Wall (2 comments)

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At 12:43pm on November 21, 2010, allen p tanner said…
TJ I took my 'block wall IR' training from unitedinfrared.com. If you want to go this route; as for Peter and tell him I said to give you the BPI courtesy discount.
Any way; the theory is that the sun needs to heat the wall, (solar loasding), sufficiently to allow the cooler cores to show the Delta T needed. Similar to flat roof scanning where we can locate moisture under a roof membrane and prior to interior ceiling damage.
You will need to take scans at different intervals and camera settings through out the day. This way you can compare images and capture the best anomalie. The color setting usuallly works best in IRON Bow or similar. You will also have to adjust the camera range at 20 degrees from high to low.
That is why interior IR doesn't work as well. The masonry wall will be more uniform through out unless there is a major moisture leak or perhaps heating duct break in the wall. I would suggest going out side and scanning some block walls at different times to get a feel for it. The sun hits different wallls at different levels so more than 1 wall cn be tested.
At 10:05am on November 21, 2010, allen p tanner said…
How are you progressing on your 'wall scan"?
One comment on the continuous running furnace fan; did the customer put the fan on 'run' instead of auto? Is the furnice an older moel that has a blower control thermostat in the hot air plenum that controls the fan and is defective?
It will cost energy to continuously run the blower and could cause excessive wear and tear and failure.
 
 
 

Forum Discussions

Speed Tips For Duct Airtightness Testing?

Started by Brendan Reid in General Forum. Last reply by David Butler 1 hour ago. 1 Reply

What made this chimney fall down?

Started by Eric Kjelshus in General Forum. Last reply by Eric Kjelshus on Tuesday. 7 Replies

How would you insulate this roof?

Started by David Butler in General Forum. Last reply by Dave Taylor Nov 11. 61 Replies

Manual J (SD) for custom, luxury homes

Started by Dav Camras in HVAC. Last reply by Dav Camras Nov 10. 3 Replies

Quantitative methods for residential zoning

Started by Brett in HVAC. Last reply by David Butler Nov 9. 1 Reply

Latest Activity

David Butler joined Chris Laumer-Giddens's group
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Energy Efficient Design

Energy efficiency starts at the drafting table...How architects and designers can help buildings…See More
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Building Simulations

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Renewable Energy

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Wrightsoft - Manual J / Manual D

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HVAC

HVAC design, Manuals J, S, T, & D, Duct leakage, Air flow, ENERGY STAR new home requirements,…See More
29 minutes ago
David Butler replied to Brendan Reid's discussion Speed Tips For Duct Airtightness Testing?
"The Home Performance Forum archives include a number of discussions on various methods for sealing…"
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Brendan Reid posted a discussion

Speed Tips For Duct Airtightness Testing?

Anyone like to share their favorite ways to speed up duct airtightness ("Ductblaster") tests?I'm…See More
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joining ducts

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