Depressurization Testing of Residential Systems

Who would benefit from this course?

HVAC Designers, HVAC Installers, Builders, Architectural Designers, Energy Advisors, Building Inspectors, Plans Examiners

What you will learn

The participant will receive the necessary skills and knowledge to do a depressurization test to one of the three national standards as referenced in the National Building Code and elsewhere; CSA F326, CSA F300, CSGB 5171. We start with a comparison of the standards and depressurization limits then, a discussion of the necessary testing equipment.

Included in the manual is a depressurization worksheet with an extensive setup checklist and test procedures.

Course Format

Included in this course is an online module, “Introduction to Basic Principles of Residential Ventilation,” which must be completed prior to attending the in-person session. You will be automatically enrolled in this online module when you register and pay for "Depressurization Testing of Residential Systems".

Please note: The login details for this online course will be made available to course registrants in September 2019.

Learning Objectives

  • Identify the standards that address depressurization testing and when they are applicable
  • List the depressurization limits for various combustion equipment types and other circumstances
  • Describe the conditions under which a depressurization test can be done
  • List the equipment requirements and steps for setting up and performing a depressurization test
  • Understand the reporting requirements for the applicable standards


Major Takeaways

  • Certification as a Depressurization Tester, which is recognized by many jurisdictions 
  • Add a unique skill set that will increase in demand as houses get tighter

For the Individual

  • Understand the methods and subtleties of depressurization testing
  • Mastering this skill will set you apart from the crowd
  • Troubleshoot spillage and odour issues


Note: If you currently hold a Residential Mechanical Ventilation Installation or Residential Mechanical Ventilation Design certification from HRAI, you are not required to complete the Online Introduction to Basic Principles of Residential Ventilation course.


  HRAI is an approved education provider with BC Housing – Licensing and Consumer Services.



When and where is the course?

Location Date Time  

Mississauga, ON

October 25, 2019 8:30am - 4:30pm REGISTER

Dartmouth, NS

February 7, 2020 8:30am - 4:30pm REGISTER

Mississauga, ON

March 27, 2020 8:30am - 4:30pm REGISTER

Winnipeg, MB

April 3, 2020 8:30am - 4:30pm REGISTER

Calgary, AB

April 17, 2020 8:30am - 4:30pm REGISTER

Can't find your location?


What is the cost?

Price:  $600.00 + taxes

HRAI Training may be eligible for partial fee reimbursement under the Canada Job Grant Fund Program (HRAI Registration #R108084138).  Check with your provincial job grant body for more details.

For any assistance, please call 1-800-267-2231 ext 241.


Cancellation Policy

  • Registration fees will be refunded in full if cancellation is received by HRAI at least 30 days prior to the training date.
  • Cancellations received 15–29 days prior to the training date are subject to a $150 cancellation fee.
  • Registrants who do not attend the training or who cancel less than 15 days prior to the training date are liable for the entire registration fee.
  • A substitute registrant may be enrolled at any time by contacting us at, or by phone at 1-800-267-2231 ext 230.


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