Blower doors consist of a sophisticated fan set in an adjustable frame. They are used to test airflow and pressure in a home. There are many uses for blower doors, such as detection of leaks in walls and in heating, ventilation, and air conditioning (HVAC) system ductwork. You can also determine if the ventilation is adequate and identify the location of energy leaks in the structure.
Since the equipment requires extensive training to use, we recommend that you hire a technician to carry out blower door testing. For most new homes this testing will cost sev
eral hundred dollars. Dollars saved in energy conservation from identified and corrected leaks may soon offset the cost of testing.
