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GAS TRADE TRAINING UNIT 27A, 7th Edition (2020)
Commercial/Industrial appliances over 400 000 Btu/h (120 kW)
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GAS TRADE TRAINING UNIT 29, 7th Edition (2020)
Advanced electricity for gas-fired equipment
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GAS TRADE TRAINING UNIT 2, 6th Edition (2019)
Fasteners, tools, and testing instruments. epub version 1.1
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GAS TRADE TRAINING UNIT 3, 6th Edition (2019)
Properties, characteristics, and safe handling of fuel gases. epub version 1.1
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GAS TRADE TRAINING UNIT 4, 6th Edition (2019)
Utilization codes, acts, and regulations. epub version 1.1
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GAS TRADE TRAINING UNIT 4A, 6th Edition (2019)
Utilization codes, acts, and regulations—Ontario supplement. epub version 1.1
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GAS TRADE TRAINING UNIT 5, 6th Edition (2019)
Introduction to electricity. epub version 1.1
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GAS TRADE TRAINING UNIT 6, 6th Edition (2019)
Technical manuals, specifications, drawings, and graphs. epub version 1.1
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GAS TRADE TRAINING UNIT 8, 6th Edition (2019)
Introduction to piping and tubing systems. epub version 1.1
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GAS TRADE TRAINING UNIT 9, 6th Edition (2019)
Introduction to gas appliances. epub version 1.1
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GAS TRADE TRAINING UNIT 10, 6th Edition (2019)
Piping and tubing systems for industrial and commercial applications. epub version 1.1
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GAS TRADE TRAINING UNIT 11, 6th Edition (2019)
Pressure regulators, overpressure protection, meters, and fuel containers epub v1.2
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GAS TRADE TRAINING UNIT 12, 6th Edition (2019)
Basic electricity for gas-fired equipment epub v1.2