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EERE » BTO » Building America » Solution Center Home » Videos » Conducting a Residential Duct Leakage Test: Why set the Duct Fan to Depressurize not Pressurize the Home

Conducting a Residential Duct Leakage Test: Why set the Duct Fan to Depressurize not Pressurize the Home

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Video describing why duct leakage tests including tests total leakage and leakage to the outside are done with the duct blaster set to depressurize rather than pressurize the duct system. Video 9 of 9.