Welcome to the HERS Advanced Rater Training Class- Performing Duct Blaster and Blower Door Tests. This course will provide an overview of two important diagnostic devices: the the Duct Blaster (DB), which tests for leaks in the home's ductwork and the Blower Door (BD), which is used to test for air leaks in the building shell.
This course will cover the basic components of both devices, as well as how to operate them and interpret the results. Learning Objectives:
After completing this lesson, students will be able to: