EP115 Advancements in technology through the eyes of Ben Walker at RETROTEC (April 2023)
Building HVAC Science
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The History of Pressure Gauges
You can do more with pressure gauges right there's other tests like even around the home. And beyond the blower door and the duck leakage has similar thing you have a different size fan you hook it up to the enclosure is the duct work and you measure the leakage flow. You seal off everything all the normal flow paths and you're looking for the bad flow paths. The things that shouldn't be that's leakage. Yeah, another is not that long ago was crawling around in my own crawl space and I realized that there's a big slit cut in the return air duct underneath my house for return going from downstairs whatever. Because they're always up busy doing someone else's work.
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