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This group performs some or all of the following duties:

• Study drawings and specifications to determine the layout of the installation and materials required
• Measure and mark reference points for installation of gas lines and equipment
• Install and maintain gas meters and regulators and gas lines between gas unit and gas meter
• Install, maintain and service gas heating units and their components, such as burners, valves and automatic controls
• Test and replace defective equipment or components
• Test and adjust control mechanisms and check pipes and piping connections for gas leaks using gas detecting devices
• Attend to gas escape calls and assist in the investigation of gas fires and explosions
• Prepare reports on work performed and condition of facilities
• Advise clients regarding standards, safety features and maintenance of gas units and systems
• Convert motor vehicles or appliances to use natural gas fuels
• May repair and service gas appliances and related equipment.

• Completion of secondary school is usually required.
• Completion of a two- or three-year gas fitter apprenticeship program or several years of work experience in a pipefitting trade and completion of a high school, college or industry gas fitter program are required.
• Gas fitter trade certification is compulsory in Nova Scotia, Quebec, Alberta, British Columbia, the Yukon, the Northwest Territories and Nunavut.
• A provincial gas fitter licence is usually required.

• Progression to supervisory positions is possible with experience.

• Gas fitters supervisor (in 72012 Contractors and supervisors, pipefitting trades)
• Appliance servicers and repairers (72421)
• Plumbers (72300)
• Steamfitters, pipefitters and sprinkler system installers (72301)