144 HOURS of related instruction covering Pre-planning, Productivity and Profitability, Residential Fixtures and Appliances, Commercial, Industrial and Institutional Fixtures and Appliances, Installation Methods, Fixture Fittings and Trim, Trim Installation, Blueprints and Specifications, Drawing Types, Floor Plans and Site Plans, Structural, Plumbing, Electrical, HVAC and Detail Plans, National Fuel Gas Code, Materials and Types of Fuel Gases, Fuel Gas Pipe Sizing, Fuel Gas Piping, Fittings and Connections, Gas Appliances, Regulators, Meters and Appliance Controls, Fuel Gas Piping Corrosion and Corrosion Protections, Vents for Category I Appliances, Gas Combustion and Controls, Study of Local Fuel Gas Code, Level and Transit, Elevations and Grade, Builders Level, Builders Transit, Offsets, Tank Capacities, Volume and Weight of Water, Ratios and Proportions, Storm Drainage and Sizing Storm Drains, Energy and Temperature, Piping Expansion, Heat Transfer, Insulation, Humidity and Condensation, Water Treatment, Heat Transfer in Water Heaters - Solar, Stratification, Multiple Heaters and Recirculation, Basic Electricity, Electric Current and Electric Motors, Electric Circuits, Circuit Protection and Electrical Safety, Electric Circuit Troubleshooting, Control Wiring.