Methods for Measuring HVAC System Air Flow

This page provides information on the most common methods for measuring HVAC system air flow.

It is organized in two basic categories - methods recognized by ANSI/ACC/RESNET for grading new residential installs, and other common methods.

For each method you will find reference information and quick overviews to help you understand the pros and cons of the method.

Residential Air Flow Measurement Recognized by Standard 310

(ANSI/ACCA/RESNET)


Other Common Methods for Air Flow

Traverse: Pitot
Traverse: Hot-wire
Indoor Coil Pressure Drop
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