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Gas Technician 3

About the Course

The starting point in your gas technician training. The Gas Technician program offered at the Niagara and Halton Skilled Trades Academies teaches the official TSSA curriculum, preparing students for the TSSA (Technical Standards and Safety Authority) Gas Fitter 3 and Gas Fitter 2 licensing examinations. This course is delivered through classroom lectures and practical hands-on learning to provide the theory and application of each element of the course. Evaluation is conducted through written and practical assignments and tests.

The  Niagara and Halton Skilled Trades Academies are TSSA approved examination centres for the G3 and G2 licensing examinations.

Gas Technician Diploma course is approved as a vocational program under the Ontario Career Colleges Act, 2005.



*Does not include books, TSSA exam fee & application processing fee

Career Description

Gas fitters (licensed Gas Technicians) install, inspect, repair and maintain gas lines and gas equipment. This equipment ranges from meters, regulators, heating units, fireplaces, residential appliances, commercial appliances and large scale equipment and appliances in industrial establishments.

Transferable Skills

  • Attention to detail
  • Communication skills
  • Self direction
  • Customer service excellence
  • Problem solving


The following are potential career options for graduates of the TSSA G3 and G2 licensing examinations.

  • Gas Fitter
  • Gas Customer Service Representative
  • Gas Service Technician
  • Appliance Repair Technician
  • Gas Technician
  • Furnace Converter
  • Furnace Installer
  • Gas Appliance Repairs/Services
  • Gas Appliance Installer
  • Water Heater Installer
  • Gas Main Fitter
  • Gas Pipefitter
  • Mechanic – Gas Pipes
  • Troubleshooter – Gas Works
  • Plumbing Apprentice
  • HVAC Technician
  • Sheet Metal Apprentice
  • Building Maintenance
  • Construction
  • Electrician Apprentice
  • Refrigeration Apprentice

Course Outline

Module 1 Safety
Module 2 Fasteners, Tools and Testing Instruments
Module 3 Properties, Characteristics, and Safe Handling of Fuel Gasses
Module 4 Utilization Codes, Acts and Regulations, and Provincial Supplements
Module 5 Introduction to Electricity
Module 6 Technical Manuals, Specifications, Drawings and Graphs
Module 7 Customer Relations
Module 8 Introduction to Piping and Tubing Systems
Module 9 Introduction to Gas Appliances

Admission Requirements

Students must have an Ontario Secondary School Diploma or equivalent, or be at least 18 years of age and pass a Superintendent approved qualifying test (CAST exam).


The G3 exam is held at the Skilled Trades Academy campus.

Gas Technician 3