A duct blaster test measures the air tightness of ductwork by pressurizing or depressurizing the system with a calibrated fan. The airflow required to maintain pressure reveals how much air is leaking, helping technicians target sealing improvements that boost comfort and efficiency.
/dʌkt ˈblæstər tɛst/
A duct blaster test measures the air tightness of ductwork by pressurizing or depressurizing the system with a calibrated fan. The airflow required to maintain pressure reveals how much air is leaking, helping technicians target sealing improvements that boost comfort and efficiency.
What does a duct blaster test measure?
It measures duct leakage by pressurizing the system and calculating the airflow needed to maintain pressure.
Source: The Cooling Company
Duct blaster tests quantify leakage to guide sealing.
A homeowner schedules a duct blaster test before upgrading HVAC equipment and discovers leaks that, once sealed, improve comfort and reduce bills.
Combine a duct blaster test with a whole‑home energy audit for the best results.
“Combine a duct blaster test with a whole‑home energy audit for the best results.”
Duct leakage is one of the most common causes of uneven temperatures in homes.
How long does a duct blaster test take?
Most tests take 1–2 hours, depending on system size and access.
Can I do a duct blaster test myself?
It requires specialized equipment and training, so it’s best performed by a professional.
Will sealing ducts really save money?
Yes. Reduced leakage lowers energy waste and improves comfort.
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