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The following references are recommended to study for the Arizona L-4 Boilers, Steamfitting and Process Piping (Commercial) Exam. This examination is used to obtain a Arizona L-4 Boilers, Steamfitting and Process Piping (Commercial) License. Also to become a licensed contractor in Arizona, candidates will also need to pass a business and management exam.
Only the following references are permitted to be taken into the exam.
- OSHA 1926
- 2009 International Mechanical Code
- 2009 International Fuel Gas Code
Low Pressure Boilers, 5th Edition$119.99
Low Pressure Boilers is the leading resource for preparing for low pressure boiler operator and facility operating engineer licensing.
2009 International Fuel Gas Code$82.99
Addresses the design and installation of fuel gas systems and gas-fired appliances through requirements that emphasize performance.
Modern Hydronic Heating, For Residential and Light Commercial$190.99
From simple applications to multi-load/multi-temperature systems, learn how to use the newest and most sophisticated hydronic heating materials and methods without sacrificing comfort or energy.