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What's New! - CURRENT STATUS - NO ERRORS REPORTED
2/17/26- Thank you for your patience as we work diligently to enhance your experience. We're committed to providing better value, refreshing outdated content, and ensuring the highest quality materials. Stay tuned for more updates and improvements coming your way!
02/16/26 - Add 4 new Exam PDF's to 313D Exam and Study package
02/16/26 - New Exam Only Package added
02/16/26 - UPDATED PDF'S UPLOADED G2/G3
02/14/26 - NEW - 313A Practice Exams Added
02/14/26 - Tech Tools added to menu
02/04/26 - 2 New G2 Exams Added
02/01/26 - 2 New G3 Exams Added
01/31/26 - G3 Exam(s) errors corrected
01/31/26 - Add New slide to 313D package
About Us

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G3, G2 & 313D, 313A Practice Exams
Built by Trades. Proven by Results.
Created by HVAC trade educators and industry professionals with over 20 years of real-world experience, our practice exams are regularly updated and reviewed to reflect current codes, standards, and exam requirements.
gastechnician.ca is dedicated to helping students confidently prepare for and successfully achieve their Gas Fitter, Gas Technician 3 (G3), Gas Technician 2 (G2), 313D Air Conditioning Mechanic and 313A Refrigeration & Air Conditioning Systems Mechanic certifications.
For more than two decades, we’ve developed, published, and maintained high-quality study materials in collaboration with licensed technicians, instructors, and students, ensuring our content remains accurate, relevant, and exam-focused.
Our Gas Technician and Gas Fitter practice exams are suitable for all Canadian provinces and feature multiple-choice questions based on:
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CSA Gas Technician Training Modules (24 books)
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CAN/CSA-B149.1 Natural Gas and Propane Installation Code
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CAN/CSA-B149.2 Propane Storage and Handling Code
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Applicable provincial regulations and safety standards
The G3 content covers foundational knowledge, while the G2 content focuses on advanced applications — making this platform effective for students nationwide.
On this site, you’ll find one of the most complete exam-prep resources available anywhere. Gain access to a large and continuously updated database of:
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Practice exams
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Study materials
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Module reviews
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Notes and exam strategies
We’ve helped thousands of students successfully earn their certifications.
Will you be prepared when exam day comes?


Study Guide Packages

Individual Practice Exams
Complete packages including multiple practice exams, multimedia, documents, references, and more
Single practice exams. Practice exams are based on the CSA standard & modules and can be redone an unlimited amount to help you study.
Try our 25 question sample exams to see how the practice exam interface looks and feels. This is only a sample. The real practice exams may contain images, charts and more.