Skip to main content
#
Questions? Call!

Ask A Question

Top Viewed Articles

Like this article? 

Get two free guides:

Replacement Window Report &

Home Efficiency Report

Join a community!


Learn how to move the
home comfort needle!

Save Energy

Effective Tips

From a Certified Pro

Energy Auditor

 

Eric Gans
Certified Energy Auditor

Subscribe
Submit

Residential Comfort & Energy Efficiency

Thursday, October 29 2020
Duct Blaster Test - Why You Need It to Meet Energy Code

A duct blaster test is often confused for a test that blasts air through the ducts to clean them out and make them work better.

That is a misperception and we should also point out that getting ducts cleaned is not a worthwhile investment.

Actually, a duct blaster test is a duct leakage test.

Ducts, usually metal with seams and joints, carry precious conditioned air to the different locations in your house.

The entire duct system is a loop that is joined at the air handler, usually in the basement or an attic.  

The loop is encapsulated, meaning there is very little outside particles or debris that can build up in your ducts, even if they run outside (attic, crawl space).

In a perfect world, the ducts would be completely sealed.

But, they are not.  And, it is not the air that enters into the leaky places in ducts (rare) it is the air that escapes the ducts that we are most concerned about.

An HVAC system is designed on pressure so that the air can reach the furthest areas of your house.

That same pressure will force air out at the seams if they are not sealed properly which will cost you comfort and money.

A duct blaster test uses air (fan) and a sensitive pressure gauge to measure the overall leakage of a duct system.  It measures leaks that are invisible to the naked eye.

It is critical to seal the ducts before it is too late and they are hard to reach.

Once the ducts are sealed properly and tested the HVAC system can truly be considered high efficiency.

 

________________

Written by Eric Gans
I have over 1000 energy audits under my belt in Maryland.  I like to take my personal experiences with each of my audit customers and try to get the things that concern them out into the world so others can make good home improvement decisions - in the right order - according to their needs.
 

Have you had a duct blaster test done for IECC code compliance in Maryland?  If so, we want to hear about it.

Comments:

Post comment
Name
 *
Email Address

Message
(max 750 characters)
*
* Required Fields
Note: All comments are subject to approval. Your comment will not appear until it has been approved.

 
Take Action Now!
 
- BGE Customers -
- Pepco Customers -
 
Home Performance
with
ENERGY STAR
Audit Request
 
*
*
*
*
 
* indicates a required field
Please fill this field.
    Specialized Maryland Contractor
    • MHIC Licensed
    • Building Analyst Certified
    • Envelope Professional Certification
    • EPA Lead Renovator Certified

       

    Hometrust Remodeling's mission is to help Maryland homeowners create a more comfortable home and save energy by using building science principles and modern air sealing and insulation techniques.
     


    Google Reviews

    Services & Service Areas

    SERVICE AREA COUNTIES
    Calvert County, Carroll County, Anne Arundel County, Baltimore County, Howard County, Montgomery County, Prince George's County

    Contact Us
    our facebook page youtube

    MHIC License # 114593
    Approved BGE Energy Contractor
    Approved Pepco Energy Contractor

     

    Hometrust Remodeling
    North Laurel, MD 20723
    301.957.6532
    info@hometrustremodeling.com
    Hometrust Remodeling

    Trust us to put all the pieces together right! 
    ©2021 Hometrust Remodeling | All Rights Reserved

    An Energy Auditor's Purpose 
    "Energy auditors visit residential buildings and talk to owners and residents.  They inspect, test, and measure to decide what energy-efficient retrofits are practical and cost effective." Residential Energy