TEC Minneapolis Exhaust Fan Flow Meter

TEC Exhaust Fan Flow Meter Box

Fast, Accurate Residential Ventilation Airflow Testing

The Exhaust Fan Flow Meter is a lightweight airflow measurement device designed specifically for testing residential bathroom exhaust fans, whole-house ventilation systems, and other low-flow exhaust applications. Smaller and easier to use than traditional flow hoods, it accurately measures airflow from 10 to 124 CFM by capturing airflow directly at the exhaust grille. During testing, the metering box is placed over the operating fan, and airflow is determined from the pressure reading displayed on a compatible digital or analog pressure gauge. An integrated flow table allows pressure readings to be quickly converted into airflow measurements, making fan performance verification fast and straightforward.

The metering box features an adjustable opening with three measurement ranges to improve accuracy across a wide range of exhaust fan capacities. A flexible gasket helps create a seal around the grille for reliable measurements, while the threaded handle accepts a standard extension pole to simplify testing of ceiling-mounted or hard-to-reach fans. When used with a pressure gauge capable of 0.1 Pascal resolution, the Exhaust Fan Flow Meter delivers airflow measurements with a typical accuracy of ±10% of reading. Measuring just 16 in x 13 in x 8 in and weighing only 3 lbs, it is an ideal portable solution for HVAC contractors, energy auditors, home performance professionals, and ventilation specialists.

Características y ventajas principales

• Designed specifically for measuring airflow through residential bathroom fans, whole-house ventilation systems, and other low-flow exhaust devices
• Measures airflow from 10 to 124 CFM, making it ideal for low-flow ventilation testing
• Smaller, lighter, and easier to use than conventional flow hoods
• Three adjustable door positions provide optimized measurement ranges for improved accuracy
• Flexible gasket helps create a tight seal around the exhaust grille during testing
• Pressure readings are easily converted to airflow (CFM) using the included flow table mounted on the metering box
• Compatible with digital and analog pressure gauges capable of 0.1 Pascal resolution
• Delivers airflow measurements with typical accuracy of ±10% when used with a 1% accurate pressure gauge
• Threaded handle accepts a standard extension or painter's pole for testing ceiling-mounted fans and hard-to-reach grilles
• Compact 16 in x 13 in x 8 in design weighs only 3 lbs for easy transport and field use
• Ideal for HVAC contractors, energy auditors, home performance professionals, and ventilation specialists
• California Energy Commission (CEC) approved for airflow measurement under California Title 24 Building Energy Efficiency Standards

Approved by the California Energy Commission (CEC) for use in as an Airflow Measurement Device for HVAC Forced Air Systems per the 2016 Building Energy Efficiency Standards (Title 24, Part6) Section 100.0(h) and Reference Residential Appendices Section RA3.3. Click Here for details.