Gasfitter — Class A
Install, repair, and maintain all types of gas-fired appliances, equipment, and piping systems.
About Gasfitter — Class A
Class A Gasfitters install, repair, and maintain all types and sizes of gas-fired appliances, equipment, and piping systems. They work with natural gas and propane systems in residential, commercial, and industrial applications.
Work Environment
Gasfitters work in residential, commercial, and industrial settings. They install and service furnaces, boilers, water heaters, industrial burners, and gas piping. The work requires strict adherence to gas codes and safety procedures.
Physical Demands
- Working in confined mechanical rooms
- Lifting heavy appliances and piping
- Working at heights for venting systems
- Crawling in crawlspaces and attics
- Pressure testing requiring attention to detail
Designated Provinces & Territories
Red Seal Exam Structure
The Gasfitter — Class A Red Seal exam consists of 100 multiple-choice questions covering 5 major work activity areas.
Total Questions
Multiple choice
5–15%
Knowledge & Recall
60–70%
Procedural Application
20–30%
Critical Thinking
Skills for Success
The essential skills required to succeed in this trade, as defined by the Red Seal program.
Reading
Read technical manuals, code books, specifications, and safety documentation related to gas fitting.
Document Use
Interpret blueprints, schematics, drawings, and technical documents used in gas fitting.
Writing
Complete work orders, reports, inspection records, and other documentation for gas fitting.
Oral Communication
Communicate with clients, colleagues, supervisors, and other trades to coordinate gas fitting work.
Numeracy
Perform measurements, calculations, and estimates required for gas fitting tasks.
Thinking
Apply problem-solving and critical thinking skills to diagnose issues and plan gas fitting work.
Working with Others
Collaborate with team members, apprentices, and other trades on gas fitting projects.
Digital Technology
Use digital tools, diagnostic software, and computer-based systems relevant to gas fitting.
Continuous Learning
Stay current with evolving codes, technologies, and best practices in gas fitting.
Career Advancement
Gasfitters can advance to service manager, gas inspector, or contractor. Some specialize in industrial burner systems, process gas applications, or energy efficiency consulting.
Specializations
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