Method 3: Pressure Matching with DuctBlaster®
| Pressure Matching |
Rating | Comments |
|---|---|---|
| Overall Value |  |
Very expensive as a flow meter, but a good deal if already using it for duct leakage. |
| Recognized by Standard 310 | Yes | Recognized by ANSI/ACCA/RESNET. |
| Residential Accuracy |
 |
Very Good accuracy via calibrated fan Per 310: Can connect to Filter Grilles and Cabinet for Duct Leakage Grade 1, Cabinet only for Grade II. |
| Consistency |  |
Generally Inconsistent readings if leaky ductwork. |
| Equipment Cost |
$$$$$ | Very expensive($3000+). If doing duct leakage testing, this is a good option, but not a good choice if just looking for air flow. |
| Time (Min) | 8 to 15 | Time consuming to hook up to blower cabinet and need to ensure it can match the blower fan air flow rate. |
