What minimum specs would an old furnace fan (or new Harbor Freight fan) need to have to do decent blower door directed air sealing work on an old leaky house? (Not necessarily for a DIY blower door scoring). Say, for example, a 2000 sq ft house with a blower door score of 2500 CFM at 50 Pa.
For more information on blower door rental equipment or pressure testing, please call or email us at 608-467-2008 or info@a-aexteriors.com. Easy commercial blower door equipment rentals for testing agencies. Rent one of the largest blower door fans in the US. We ship throughout the United States! Some raters prefer to do this test with the fans reversed so that they pressurize the house and ducts to 25 pascals rather than depressurizing the house to -25 pascals. How to Test Duct Leakage to the Outdoors. Install a blower door in an exterior door that opens to a central location in the home. Though the building leakage curve can be estimated using a single-point blower door test, the curve is more reliable when a multi-point test is used. The test performed in the example above was an ASTM E779 multi-point test. The leakage rate at 60 pascals was 806 cfm, and at 18 pascals, 339 cfm. Follow the step-by-step instructions below to design your blower door test results form: Select the document you want to sign and click Upload. Choose My Signature. Decide on what kind of signature to create. There are three variants; a typed, drawn or uploaded signature. Create your signature and click Ok. Press Done. 0ISJ.blower door test equipment price
