Gasfitter – Class A (GFA)

Attain Excellence with PlumberConquer

Premium Practice Questions

What is the Gasfitter – Class A (GFA)?

The Gasfitter – Class A (GFA) is the highest level of professional certification in the gas fitting trade. While a Class B gasfitter is restricted to appliances with a maximum input of 400,000 BTUs (British Thermal Units), a Class A license removes these limits, allowing the holder to install, test, maintain, and repair gas systems and equipment of unlimited BTU input.

  • Official Exam Name & Acronym: Gasfitter – Class A (GFA) / Class A Gas Fitter Certificate of Qualification.
  • Conducting Body/Authority: In Canada, this is administered provincially by safety authorities such as Technical Safety BC (TSBC), the Technical Standards and Safety Authority (TSSA) in Ontario, or SkilledTradesBC. Nationally, the standards align with the Red Seal program.
  • Purpose of Exam: Professional Licensure. It is a mandatory legal requirement for any individual wishing to work on high-output industrial gas equipment.
  • Geographic Validity: Primarily recognized within the issuing province (e.g., British Columbia, Alberta, Ontario). However, through the Red Seal Endorsement (RSE) and the Canadian Free Trade Agreement (CFTA), a Class A license is highly portable across all Canadian provinces and territories.
  • Level of Competence: Specialist/Expert Level. This is the “Master” level of the trade, demonstrating mastery over complex industrial systems, power plants, and large-scale commercial boilers.
  • Brief History: The certification evolved from early 20th-century steamfitting and plumbing trades. As industrial gas demands grew in the 1960s and 70s, the “Class A” designation was established to ensure safety in high-pressure, high-volume industrial environments.

Who Can Take the Gasfitter – Class A (GFA)? (Eligibility Requirements)

The GFA is not an entry-level exam. It requires a significant foundation in the trade.

  • Academic Requirements: Completion of a recognized Gasfitter Class A technical training program (usually 240–300 hours of classroom instruction) from an accredited vocational college.
  • Experience Requirements: Candidates must typically hold a valid Gasfitter – Class B license for a minimum of two years and document at least 3,600 hours of work experience specifically related to gas systems under the supervision of a Class A certificate holder.
  • Documentation Checklist:
    • Original Class B Gasfitter Certificate.
    • Signed “Affidavit of Work Experience” from a Class A supervisor.
    • Government-issued Photo ID (Passport or Driver’s License).
    • Proof of completion of the Class A technical training module.
    • Completed Exam Application Form (e.g., Form 1026 for TSBC).
  • Language Proficiency Requirements: While no formal IELTS score is usually required for domestic candidates, the exam is conducted in English (or French in Quebec/New Brunswick). Candidates must be proficient in technical terminology used in the CSA B149.1 and B149.3 codes.
  • Age/Citizenship: Minimum age of 18. Must be a Canadian citizen, permanent resident, or hold a valid work permit.

Summary of Eligibility

Requirement Details
Prerequisite License Class B Gasfitter (Minimum 2 years)
Work Experience 3,600 hours of verified Class A work
Technical Training Completion of Level A Apprenticeship/Program
Background Check No criminal record related to trade safety violations

How to Register for the Gasfitter – Class A (GFA)

Exam Schedule & Availability

The GFA exam is typically available year-round. Most provincial authorities offer “On-Demand” scheduling through computer-based testing centers. Registration windows are usually open 30 to 60 days before your intended date.

Exam Fees (Detailed Breakdown)

Note: Fees are estimated based on 2023/2024 provincial averages (CAD).

Fee Type Amount (Approx.)
Application/Evaluation Fee $75 – $100
Examination Fee $150 – $190
Certificate Issuance Fee $80 – $120
Late Registration/Rescheduling $50
Total Estimated Cost $305 – $460

Booking Process

  1. Submit Application: Upload your work experience affidavits and training certificates to the provincial safety authority portal (e.g., TSBC Online Services).
  2. Payment: Pay the evaluation and exam fees via credit card.
  3. Approval: Wait 2–4 weeks for the authority to verify your hours.
  4. Scheduling: Once approved, you will receive an “Eligibility to Write” letter. You can then book your slot via Prometric or the authority’s internal testing center.

Retake Policy

If you fail the exam, you must wait 30 days before the second attempt. If the second attempt is failed, a 6-month waiting period or a requirement to retake technical training is common. There is usually a maximum of 3 attempts within a 2-year period.

Score Validity

The exam result does not expire as long as you pay your annual/triennial certificate renewal fees. If you let your license lapse for more than 3 years, you may be required to rewrite the exam.


Gasfitter – Class A (GFA) Exam Format & Structure

Exam Format

The GFA is a Computer-Based Test (CBT), though some regions still offer paper-based versions upon request. It is strictly proctored in person.

Timing & Duration

Feature Details
Total Duration 3.5 to 4 Hours
Number of Sections 4-5 Content Domains
Breaks None (Scheduled) / Emergency only

Question Count & Types

The exam consists of 100 to 120 Multiple Choice Questions.

  • MCQ (Single Answer): 100% of the exam.
  • Calculation Questions: Requires use of pipe sizing tables and gas law formulas.
  • Diagram Interpretation: Reading complex industrial schematics.

Syllabus & Content Domains

Domain Topics Covered Weightage
Codes & Regulations CSA B149.1, B149.3, Provincial Acts 25%
Industrial Equipment Boilers, Burners, Heat Exchangers, Turbines 30%
Controls & Safety Flame safeguards, PLC basics, Valve trains 20%
Sizing & Venting High-pressure piping, Engineered venting 15%
Testing & Commissioning Purging, Combustion analysis, Start-up 10%

Official Reference Materials

The exam is Open Book. You are allowed to bring:

  • CSA B149.1: Natural gas and propane installation code.
  • CSA B149.3: Code for the field approval of fuel-related components on appliances.
  • Handheld calculator (non-programmable).

How is the Gasfitter – Class A (GFA) Scored?

  • The Passing Threshold: You must achieve a minimum score of 70%.
  • Negative Marking: No. There is no penalty for wrong answers, so it is in your best interest to answer every question.
  • Scoring Mechanics: Each question carries equal weight. The score is calculated as (Correct Answers / Total Questions) * 100.
  • Result Declaration: For CBT exams, you often receive an unofficial “Pass/Fail” immediately. Official results and the certificate follow via mail within 10–15 business days.

How Difficult is the Gasfitter – Class A (GFA)?

Difficulty Assessment

Rating: Challenging to Very Difficult.
Unlike the Class B exam, which focuses on residential furnaces and water heaters, the Class A exam requires a deep understanding of CSA B149.3, which involves custom-engineered industrial burners. Candidates often struggle with the complexity of valve train sequences and high-pressure gas laws.

Historical Pass Rates

While official data is rarely published by authorities, industry estimates suggest:

  • First-time pass rate: 55% – 60%
  • Most Challenging Topics: Electrical flame safeguard controls and B149.3 non-certified appliance requirements.

Gasfitter – Class A (GFA) vs. Similar Certifications

Feature Gasfitter – Class A Gasfitter – Class B Steamfitter/Pipefitter
BTU Limit Unlimited Up to 400,000 BTU N/A (Process focused)
Focus Industrial/High Output Residential/Commercial Piping Systems
Difficulty High Moderate Moderate/High
Primary Code CSA B149.1 & B149.3 CSA B149.1 ASME B31.1/B31.3

How to Prepare for the Gasfitter – Class A (GFA)

Recommended Study Timeline

  • Total Preparation Time: 3–4 months.
  • Phase 1 (Month 1): Deep dive into CSA B149.1 (Reviewing Class B fundamentals).
  • Phase 2 (Month 2): Intensive study of CSA B149.3 (Industrial Field Approvals).
  • Phase 3 (Month 3): Practice sizing high-pressure lines and electrical troubleshooting.
  • Phase 4 (Final 2 Weeks): Timed practice exams.

Best Study Resources

  • The CSA B149.1 and B149.3 Code Books: Your most important tools.
  • “Gas Trade Theory” Textbooks: Specifically those focusing on Industrial Burners.
  • Online Prep Courses: Many colleges offer “Class A Prep” night courses.

What to Expect on Gasfitter – Class A (GFA) Exam Day

  • Arrival: Arrive 30 minutes early for check-in.
  • Security: You will be asked to empty pockets and may be scanned with a metal detector.
  • Permitted Items: Approved Code Books (no loose notes inside), non-programmable calculator, and two pieces of ID.
  • Prohibited: Smartphones, smartwatches, and any external paper or study guides.

After Passing the Gasfitter – Class A (GFA)

Once you pass, you are legally authorized to work on the largest gas-fired equipment in the world, including:

  • Pulp and paper mill boilers.
  • Power generation turbines.
  • Industrial kilns and ovens.
  • District heating plants.

Continuing Education: Most provinces require a “Code Update” course every time the CSA B149 code is updated (usually every 5 years) to maintain your license.


Frequently Asked Questions

  1. Can I take the Class A exam without a Class B license? No. You must hold a Class B license first as it provides the foundational safety knowledge required for the trade.
  2. Is the Class A Gasfitter a Red Seal trade? Yes, “Gasfitter – Class A” is a designated Red Seal trade in Canada.
  3. What is the average salary for a Class A Gasfitter? In Canada, Class A Gasfitters typically earn between $90,000 and $130,000 annually, depending on overtime and industrial location.
  4. Can I use a digital version of the code book? No. Physical, hard-copy code books are required for the exam.
  5. How many questions are on the B149.3 code? Approximately 20-30% of the Class A exam focuses specifically on the B149.3 code.
  6. Is there a practical component to the exam? No, the GFA is a theoretical exam. Your practical skills are verified through your 3,600 hours of documented work experience.
  7. What happens if I move to another province? You can apply for “Labor Mobility” to have your license recognized in your new province, though you may need to pay a provincial registration fee.
  8. Are there any age limits? Only the minimum age of 18; there is no upper age limit.
  9. Do I need to know electrical for this exam? Yes. A significant portion of the exam covers flame safeguards, motor starters, and control circuits.
  10. Can I tab my code books? Yes, most authorities allow permanent, commercially available tabs, but not handwritten sticky notes.

Loading study notes...

Loading flash cards...

Loading mindmap...

Loading premium content...

Achieve a Competitive Edge in Your Plumber Exam

Master your Plumber Exam with the top study resource on the market

Complete Compatibility for All Devices

Gain unrestricted access to practice questions anytime and anywhere you require. PlumberConquer operates effortlessly across all mobile devices, laptops, and electronic gadgets.

Invest in the Ultimate Resource for Success

Every practice question, study note, and mind map is carefully crafted to help candidates like you conquer the Plumber Exam with ease.

Why PlumberConquer Is The Top Choice For Plumber Exam

Comparison Table
Features PlumberConquer Benefits Competitors Self Study
Exam Explanations
Green Tick
In-depth insights paired with essential exam expertise
Red Cross
Brief correct/incorrect answers only
Red Cross
Nil
Study Notes
Green Tick
Concise key notes for quick concept mastery
Red Cross
No study notes provided
Red Cross
Self prepared
Audio Study Material
Green Tick
More than 3 hours of detailed video study notes for convenient learning anytime
Red Cross
No video study materials
Red Cross
Nil
Mind Mapping
Green Tick
Organized mind maps for an in-depth understanding of the subject
Red Cross
No mind mapping tools
Red Cross
Nil
Question Bank
Green Tick
Comprehensive question database utilizing spaced repetition to enhance memory retention
Red Cross
Limited question bank
Red Cross
Nil
Device Compatibility
Green Tick
Full support for mobile, desktop, and tablet devices
Red Cross
Desktop only
Red Cross
Nil
Content Updates
Green Tick
Regular updates by dedicated exam experts
Red Cross
Infrequent updates
Red Cross
Nil
Account Access
Green Tick
Instant access upon payment completion
Red Cross
Manual account activation required
Red Cross
Nil
Success Guarantee
Green Tick
Unlimited access renewal until you succeed in the Plumber Exam within a year
Red Cross
Limited guarantee with conditions
Red Cross
Nil
Bonus Content
Green Tick
Career development resources including resume writing, productivity, and mindset training
Red Cross
No bonus content
Red Cross
Nil

One Year Success Guarantee

PlumberConquer provides industry-leading success rates and outstanding support for your Plumber Exam certification path. Earning the Plumber Exam certification transforms your professional standing, boosting your credentials on LinkedIn and email signatures while creating new opportunities for career growth and increased industry recognition.

We respect your dedication to professional development by offering thorough assistance throughout your Plumber Exam preparation. Our faith in our program is supported by a comprehensive one-year guarantee.

If you require additional preparation time, encounter unexpected obstacles, or need extra guidance, we’ll extend your platform access without additional fees. Simply reach out via email or mail to request an extension.

Your achievement is our focus, and we’ve made the extension process effortless. No forms to complete, no evidence needed, and no interrogation. All requests are handled efficiently and professionally. Be part of the thousands of successful professionals who have enhanced their careers using our platform.

We fully support our promise: anyone asking for extended access will receive it promptly—no complications, no questioning, guaranteed.

Elevate Your Career with the Plumber Exam Credential

Gasfitter – Class A (GFA) (365 Days)
  • 3 Hours Video Study Key Notes
  • Instant Access
  • Study Anywere
  • Support All Devices
  • Detailed Explanation
  • Mimic Real Examination Format
🛡️ One Year Success Guaranteed
Last Updated: 21 January 2026
Number of premium questions: 3350
Payment: One-time payment (no recurring fees)
2
Team purchases show a 10% discount and let you add extra member emails at checkout.
Best Value
365 Days Access
Total: $499 USD
$1.4 USD/day
90 Days Access
Total: $249 USD
$2.8 USD/day
30 Days Access
Total: $99 USD
$3.3 USD/day
Create An Account

FAQ

Our practice questions are meticulously designed to replicate the real Plumber Exam experience. Every question comes with thorough explanations, clarifying why the correct answer is accurate and why the other choices fall short.

Secure instant access once your payment is confirmed. You will promptly receive full access to a wide range of study materials, featuring practice questions, study guides, and detailed answer explanations.

If you do not obtain Plumber Exam certification after utilizing our platform, we will prolong your access at no additional cost until you succeed, valid for one year from the date of purchase.

PlumberConquer is crafted to function seamlessly across all devices. Study with ease on smartphones, tablets, iPads, and computers using our flexible platform design.

Our questions mirror the format and challenge of the Plumber Exam while adhering to ethical guidelines. We respect the copyrights of the official body and create unique content that promotes genuine understanding rather than simple rote learning. Our focus is on developing true proficiency for enduring success.

user user An official invoice will be emailed to you immediately after your purchase. This invoice will contain your contact information, details about the product, the payment amount, and the date of the transaction for your records.

Why PlumberConquer

Our past candidates loves us. Let’s see how they think about our service

James
James Verified Buyer
"Grateful for PlumberConquer for their exceptional resources. The study materials were thorough and straightforward. Their emphasis on practical examples helped me grasp Plumber Exam concepts effortlessly. Every dollar spent was worthwhile - it felt like having a personal mentor leading me through the Plumber Exam."
Emily R.
Emily R.Verified Buyer
"As a full time professional, PlumberConquer adaptable study approach was ideal. The mobile application allowed me to study while commuting. Their extensive question bank is impressive, and the performance analytics pinpointed my areas for improvement."
David H.
David H.Verified Buyer
"I used to feel overwhelmed by the Plumber Exam, but PlumberConquer turned studying into a manageable and even enjoyable experience. I truly appreciate this resource."
Sophia G.
Sophia G.Verified Buyer
"Just completed my Plumber Exam with the help of PlumberConquer. The practice questions were tough yet reasonable. The thorough explanations clarified the reasoning behind each response. The video tutorials were particularly beneficial."
Brian K.
Brian K.Verified Buyer
"PlumberConquer transformed my preparation for the Plumber Exam into an enjoyable experience. The engaging quizzes and real-world case studies kept my interest high. The performance tracking tools allowed me to concentrate on the areas that required more attention. A valuable investment for sure."
Olivia C.
Olivia C.Verified Buyer
"PlumberConquer customer support is exceptional. Whenever I had inquiries, they replied promptly. Their study resources are thorough, and the practice exams significantly assisted me in assessing my preparedness."
Daniel E.
Daniel E.Verified Buyer
"I'm thrilled I opted for PlumberConquer. Their structured method for Plumber Exam preparation made the experience much more manageable. The practice questions were tough yet reasonable, and the explanations were consistently straightforward."
Sarah M.
Sarah M.Verified Buyer
"Preparing for the Plumber Exam felt daunting until I discovered PlumberConquer. Their organized strategy and weekly study schedules helped me stay focused. The practice questions were tough yet equipped me thoroughly. I aced the exam with flying colors."
Michael S.
Michael S.Verified Buyer
"A true game changer. The educators at PlumberConquer are incredibly knowledgeable. Their insights on exam strategies were essential, and the community forum provided an excellent platform for networking with fellow candidates. Achieved outstanding results."
Rachel W.
Rachel W.Verified Buyer
"After dedicating months to my studies, the PlumberConquer quizzes and practice exams provided the essential support I required to succeed in the Plumber Exam."
Mark A.
Mark A.Verified Buyer
"Discovering PlumberConquer transformed my preparation. Their study resources are precise, and the practice tests significantly boosted my confidence. The weekly webinars clarified any uncertainties I had regarding challenging Plumber Exam concepts."
Megan B.
Megan B.Verified Buyer
"I utilized PlumberConquer for my Plumber Exam preparation and I am extremely satisfied. Their question bank is vast, and the explanations are detailed. The practice exams significantly boosted my confidence ahead of the real test."
Ethan V.
Ethan V.Verified Buyer
"Exceptional preparation program PlumberConquer offers a well-structured and current curriculum. The practice assessments pinpointed my areas for improvement, and their focused review resources significantly enhanced my skills. Successfully completed the Plumber Exam with high honors."
Jessica N.
Jessica N.Verified Buyer
"PlumberConquer study resources are invaluable. The practice tests closely resemble the actual Plumber Exam format. Their advice on managing time during the exam proved to be particularly beneficial."
James P.
James P.Verified Buyer
"I had my doubts about online exam preparation, but PlumberConquer transformed my approach. Their practice questions were accurate, and the explanations clarified intricate plumbing concepts. I successfully passed my plumber exam on my first attempt. The mock tests proved to be especially beneficial."
Anna L.
Anna L.Verified Buyer
"PlumberConquer material is invaluable. Their approach to simplifying intricate Plumber Exam frameworks into easily understandable segments is exceptional. The practice tests closely resembled the real Plumber Exam format. I couldnt have achieved this without their support."
Chris T.
Chris T.Verified Buyer
"PlumberConquer practice tests mirrored the actual experience perfectly. I entered the Plumber Exam with a sense of calm and assurance."
Laura J.
Laura J.Verified Buyer
"Exceptional platform PlumberConquer method for teaching Plumber Exam analysis is both practical and impactful. The consistent updates to study resources ensured everything remained aligned with industry developments. I successfully passed the Plumber Exam on my first try."
Jason M.
Jason M.Verified Buyer
"The practice questions on PlumberConquer closely mirrored the real Plumber Exam. Their study schedule template kept me organized, and the video lessons were ideal for visual learners such as myself."
Isabella F.
Isabella F.Verified Buyer
"After exploring various study resources, PlumberConquer stood out as the best choice. Their emphasis on the practical application of Plumber Exam principles simplified the learning process. The mobile app was ideal for reviewing material during lunch breaks."

Transform Your Future Through Plumber Exam Preparation

Conquer the Plumber Exam with Assurance

Achieve a competitive edge