Blower Door

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An Introduction to Zonal Pressure Diagnostics

Randy Williams explains more of his air leak sleuthing techniques in the latest... More

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Single-Point vs. Multi-point Blower Door Testing

Randy Williams explains the difference in these two types of tests, and when it's... More

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Calculating House Volume for Blower Door Tests

The only way to accurately measure air changes per hour is to accurately measure... More

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Setting Up a Home for a Blower Door Test

Blower door testing a home requires much more than simply setting up the equipment... More

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