Gas Piping and Venting

Fuel gas piping and appliance venting under CSA B149.1, followed through an apprentice and a G2 gas technician on a Hamilton high-rise: natural gas and propane properties and combustion; TSSA certificates and who may do the work; meters, regulators and delivery pressures; steel, CSST, copper and polyethylene piping; sizing by the longest-length method; installing, supporting and protecting piping; valves, sediment traps and connectors; combustion and ventilation air; vent categories, connectors and common venting; chimneys, direct vent and wall terminations; pressure testing, leak checks and purging; and appliance start-up, combustion analysis and carbon monoxide safety.

PLB-230 12 lessons · 4 h 19 min ▶ Video lessons coming soon

Offered by HSM University · Plumbing

This is the Canadian version of this course. See the American version.

What you'll learn

Describe the properties of natural gas and propane, their flammable ranges and combustion, and convert appliance inputs into gas flow.
Explain how CSA B149.1 and TSSA's code adoption document regulate gas work in Ontario, the scope of G1, G2 and G3 certificates, and the roles of the contractor, utility and inspector.
Trace the gas supply from the utility main through the meter and regulators to the appliance, and measure and convert gas pressures in common units.
Select steel, CSST, copper, polyethylene and appliance connectors for gas service, with the joining, protection and bonding each requires.
Size low-pressure and elevated-pressure gas piping with the longest-length method and recheck existing piping when loads are added.
Install, route, protect, penetrate and support gas piping, avoiding prohibited spaces and fittings and allowing for expansion.
Install shutoff valves, sediment traps, unions, connectors, restraints and kitchen emergency shutoff valves, and cap unused outlets.
Determine whether an appliance space has an adequate air supply, provide outdoor or mechanical air, and recognize depressurization hazards.
Explain natural and mechanical draft and the four vent categories, and install vent connectors and common vents to the code's rules.
Apply chimney, liner, roof termination and sidewall termination requirements, including clearances, snow, frost and condensate.
Pressure test new and altered gas piping, find and repair leaks, purge piping safely and leak check at operating pressure.
Describe appliance start-up, safety controls, pressure and input checks, combustion analysis and carbon monoxide safety, and record and hand over the work.

Course content

12 lessons · 4 h 19 min total · final exam

1 Fuel gases: natural gas, propane and combustion 23 min · quiz
2 Gas codes, TSSA certificates and who may do the work 22 min · quiz
3 Gas supply: meters, regulators and delivery pressures 21 min · quiz
4 Gas piping materials: steel, CSST, copper and polyethylene 22 min · quiz
5 Sizing gas piping: loads, pressure drop and the longest-length method 21 min · quiz
6 Installing and supporting gas piping 21 min · quiz
7 Valves, sediment traps and appliance connections 22 min · quiz
8 Combustion air, ventilation air and building pressure 21 min · quiz
9 Venting categories, vent connectors and common venting 22 min · quiz
10 Chimneys, direct vent and wall terminations 21 min · quiz
11 Pressure testing, leak checks and purging 21 min · quiz
12 Appliance start-up, combustion analysis and carbon monoxide safety 22 min · quiz
E Final exam 20 questions

Requirements

PLB-130 Water Supply Systems

Recommended background. You can start any course at any time.