PGDB Certifying Gasfitter study plan

Map the code book structure: locate the pipe sizing, pressure testing, and installation clauses in the adopted gas code and mark every table you will need with tabs

Compute allowable pressure drop and size a 60 ft trunk with three branch takeoffs using the longest-run method, showing every step

List the required test pressures and durations for low-pressure and elevated-pressure systems and state which gauge range and resolution each test demands

Write a one-page checklist of installation requirements for concealed piping, sleeving through masonry, and bonding/grounding of gas piping

Identify the permit, notification, and inspection obligations your jurisdiction imposes before and after pressure testing

Convert between nominal pipe size, actual inside diameter, and capacity for the common piping materials allowed in your code

Size a manifold and branch run for a furnace, water heater, and range using both the longest-length and branch-length methods and compare results

Draft an appliance installation checklist covering clearances, accessibility, sediment trap, drip leg, union placement, and shutoff valve location

Verify combustion air and clearance requirements for a direct-vent versus a Category I appliance installed in a closet

Explain in writing how to protect piping during a pressure test when the appliance is connected versus isolated

Classify appliances by vent category and match each to its permitted venting method, material, and termination

Calculate required combustion air for a confined space using both the indoor-air and outdoor-air methods, including the leakage-rate allowance

Compute the vent connector size and rise for a draft-hood appliance and check it against the venting tables

Describe the ignition temperatures, flammability limits, and specific gravities of natural gas, propane, and the common mixed gases, and explain how each affects venting and leak behavior

Sketch correct and incorrect terminations for sidewall and roof vents, including clearances to windows, doors, and mechanical intakes

Trace a complete wiring diagram for a standing-pilot and an intermittent-ignition appliance and label every safety component in the circuit

Explain the sequence of operation of a hot-surface ignition control from call for heat to blower-off, naming each proving step

Test and interpret flame-sensing current, thermocouple millivolt output, and thermopile output against manufacturer specifications

Identify the function of limit switches, rollout switches, pressure switches, and flame roll-out safeties and describe how each fails safe

Verify appliance electrical supply requirements, polarity, grounding, and the consequences of reversed polarity on ignition controls

Build a systematic diagnostic routine for no-heat, short-cycling, and delayed-ignition complaints that starts at the call for heat and works through each proving device

Practice isolating faults with a multimeter on a live low-voltage circuit while following lockout and safe-work procedures

Diagnose a pressure-switch fault caused by a blocked flue, a condensate trap issue, and a failed inducer, and distinguish the three by measurement

Write a servicing checklist covering burner cleaning, orifice inspection, heat exchanger inspection, and manifold pressure adjustment

Explain how to verify gas manifold pressure with a manometer under both full-fire and reduced-fire conditions

Perform a full combustion analysis and record oxygen, carbon dioxide, carbon monoxide, stack temperature, and excess air for at least two appliance types

Calculate steady-state efficiency and stack loss from measured data and explain what each reading indicates about the appliance condition

Identify the causes and corrections for elevated carbon monoxide in a draft-hood appliance versus a condensing appliance

Describe the health effects, exposure limits, and testing protocol for carbon monoxide, including when to red-tag and shut down

Explain how depressurization, tight construction, and exhaust fans affect indoor air quality and appliance drafting

Summarize the scope, amendment process, and enforcement structure of the adopted gas code and how provincial or state regulation layers on top of it

List the documentation a gasfitter must produce and retain for permits, inspections, and modifications to an existing installation

Assemble a personal safety procedure for lockout, confined-space entry, leak investigation, and working near electrical equipment

Describe the correct tools and methods for leak detection and explain why open flame is prohibited

Explain the notification and record-keeping duties that apply when an appliance is red-tagged or shut off

Practice explaining a carbon monoxide finding, a failed pressure test, and a red-tag decision to a customer in plain language without overstating or minimizing risk

Draft a service report template that records appliance data, test results, and recommendations in a form a customer and an inspector can both read

Review and re-drill the two weakest domains from earlier weeks using timed practice questions

Recite the code clauses you are most likely to be tested on from memory and verify each against the book

Complete a full timed mock exam under exam conditions and review every missed item to its code or manufacturer reference