C-4 – Boiler, Hot Water Heating and Steam Fitting Contractor

A boiler, hot-water heating and steam fitting contractor installs, services and repairs power boiler installations, hot-water heating systems and steam fitting, including fire-tube and water-tube steel power boilers and hot-water heating low pressure boilers,steam fitting and piping, fittings, valves, gauges, pumps, radiators, convectors, fuel oil tanks, fuel oil lines, chimneys, flues, heat insulation and all other equipment, including solar heating equipment, associated with these systems.

The Boiler, Hot Water Heating and Steam Fitting (C-4) Examination is divided into six major sections. These sections are:

1. Job Planning/Estimating (14%)

• Boiler design
• Boiler calculations
• Boiler codes

2. Hydronic and Steam Systems (35%)

• Boiler preparation and layout
• Boiler/equipment installation
• Valve, piping, and hanger installation
• System preparations
• Insulation and penetration sealing

3. Radiant Panel Systems (13%)

• Piping and equipment installation
• Temperature controls and wiring
• System start up/testing

4. Heat Exchangers (5%)

• Maintenance access requirements
• Vacuum breakers and control valves

5. Service and Maintenance (18%)

• System shut down
• Troubleshooting
• System cleaning and repair
• Testing and start up

6. Safety (15%)

• Identification of job site hazards
• Worker safety

*Percentages are approximate*