Duct leakage testing measures how much conditioned air escapes from your HVAC ductwork. Because ducts distribute heated and cooled air throughout your home, leakage reduces comfort, increases energy use, and can prevent compliance with MA & RI building codes.
Energy Geeks provides certified duct testing for builders, renovators, and homeowners.
How Duct Leakage Testing Works
We use:
- A calibrated duct fan
- A pressure gauge (manometer)
- Special sealing materials (to temporarily seal registers)
The system is pressurized to 25 Pascals, and leakage is measured as CFM25 — cubic feet per minute of duct leakage.
Learn how blower door testing works as well:
What Is a Blower Door Test?
Why Duct Leakage Matters
Leaky ducts can cause:
- Higher energy bills
- Reduced comfort
- Uneven temperatures across rooms
- Negative pressure issues
- Lower HERS Scores
Explore the connection:
Why Duct Leakage Matters for Your HERS Score
Code Requirements in MA & RI
Both states require duct testing when ducts are outside the conditioned space.
Details here:
Duct Testing for Code Compliance
When Duct Testing Is Required
- New construction
- Major HVAC replacements
- Homes pursuing a HERS Rating
- Energy Star / ZERH certification
- Incentive program eligibility
Learn about rebate connections:
Mass Save & RI RNC Integration
