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In The Field With Neil: Depressurize or Pressurize Airtightness Test
Question: Should the blower door test be performed in a pressurized or depressurized mode? The blower door test follows ASTM standard E779 (Standard Test Method for Determining Air Leakage Rate by Fan...
View ArticleIn The Field With Neil: Digital Meter Calibration
Spring is in the air – so what does that have to do with your manometer calibration? Probably nothing, except Spring means new beginnings and we need to make sure that our equipment is up to the task...
View ArticleIn The Field With Neil: Automatic Fan Control
Most of us use either the Energy Conservatory DG-700 or Retrotec DM-2 digital micromanometers. These meters have some great, yet under utilized features. I would like to introduce you to one of the...
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In The Field With Neil: RESNET-Approved Airflow Measurement Techniques
Chapter 8, section 804 of the RESNET Standard provides us with an onsite procedure for measuring the airflow of ventilation systems. These procedures treat the air flows into a grille and out of a...
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In the Field with Neil: RESNET Chapter 8 Blower Door Numbers
In July 2013 – Florida changed; some say for the better – others not so much so. Never the less, change has occurred. For raters working in Florida, it means that we now have the option in how we...
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In the Field with Neil: Calculating Dewpoint Temperature
By Neil Moyer October 13, 2014 Condensation on my glass is OK, but not so much in my wall assembly. Summer is nice and hot, and wet. We build enclosures to keep us at a comfortable 55 degree dewpoint...
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