Working with a C-4 Boiler, Hot Water Heating and Steam Fitting Contractor means choosing a professional who is qualified, regulated, and experienced in handling complex heating and boiler systems. The C-4 license, issued by the California State License Board (CSLB), certifies that the contractor is trained to design, install, maintain, and repair mechanical systems that produce and distribute hot water or steam safely and efficiently.
California Code of Regulations
Title 16, Division 8, Article 3. Classifications
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.
Authority cited: Sections 7008 and 7059, Reference: Sections 7058 and 7059 (Business and Professions Code)