A very common complaint about duct testing is that the covers get blown off the registers. Most code language leaves the choice of pressurizing or depressurizing up to the tester, but experience has shown that the positive pressure made sealing registers much more difficult, and could triple the time to perform a test.
The manufacturers creating new HVAC technologies are teaching others all about it.
Podcasts
Kara Saul Rinaldi, executive director with the National Home Performance Council (NHPC) introduces the NHPC and discusses a recently released white paper focused on properly developing the home-performance industry.
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