Duct Air Leakage Test

Duct Air Leakage Test or Duct Blaster Testing measures air leakage in HVAC ducts.   

Leaky ducts can waste energy and reduce indoor air quality. This test ensures your ductwork is sealed properly, especially after new installations or repairs.

1.  The Heating, Ventilation & Air Conditioning (HVAC) ductwork is tested by sealing off all HVAC registers except one

2.  Pressurizing the ductwork system by using a manometer, fan and a device to monitor the air flow and pressure. 

3.  The pressure achieved should be CFM 25

4.  A Report is issued to certify the rate of leakage. 

A Duct Air Leakage Test is required by the NC Building Code for all new and replacement HVAC systems.   An independent qualified tester performs the Duct Air Leakage Test to determine the rate of Air Leakage. The compliance standard is 5%. If air leakage in the system is greater than 5%, then remedial work is needed to reduce energy use and cost.   

BPI Certified Analyst tester performs testing for Zap Killer Watts.

Brian Smith has been performing energy testing including Duct Air Leakage testing for more than fifteen years. 

COST depends on the number of HVAC units, size of the house and location.

Call us at (252) 491-2670   |   save@zapkillerwatts.com

2018 North Carolina State Building Code  from the International Code Council