SYSTEM AND METHOD FOR SELECTING PROPER COMPONENTS FOR MITIGATING RADON

摘要

A system and method for selecting a proper fan for an air flow system for mitigating radon in a building. An air flow system includes a pipe connected to an access hole extending through the center of a slab and into the underlying soil. A test hole also extends through the slab. A variable speed test fan is installed in the pipe, and a manometer is installed to measure a static pressure value of the overall system. A chart or a computer program is configured to correlate a particular speed of the test fan and a particular static pressure value when the test fan creates an initial draw at the test hole with an identification of a proper fan. The proper fan has an operating speed which is closest to the particular speed. The proper fan is then installed in place of the test fan in the air flow system.