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)
TrueFlow
TESP
Flow Hood
Pressure Matching
Other Common Methods for Air Flow
Traverse: Pitot
Traverse: Hot-wire
Traverse: Mini-vane
Temp Rise
Temp Split
Indoor Coil Pressure Drop
