Information About NFPA 54: National Fuel Gas Code 2002 Edition
NFPA 54: National Fuel Gas Code is the industry benchmark that designers, installers and inspectors nationwide rely on for comprehensive guidance on fuel gas system design, installation and maintenance. Compliance with NFPA 54: National Fuel Gas Code improves productivity, increases fire safety and fire protection, and reduces accidents. Requirements address every aspect of fuel gas safety, including:
- Gas piping system design, materials and components
- Gas piping installation
- Inspection, testing and purging
- Installation and venting of all types of equipment
- Procedures for placing equipment in operation
- Pipe sizing and sizing of Category 1 venting systems.
Key changes in the NFPA 54: National Fuel Gas Code 2002 Edition include:
- Revised treatment of the combustion air requirement eliminates the concept of "unusually tight construction" and provides a definitive calculation method using the actual air exchange of the house
- The addition of a new branch length method for pipe sizing allows for smaller pipe size in branches and can be useful where lengths vary
- Recognition of flammable vapor ignition-resistant water heaters that can be installed directly on garage floors rather than on an 18-inch elevation
- Revised venting provisions clarify procedures for corrugated liners and vent offsets
- Easy-to-use reformatted pipe sizing and venting tables ensure consistency
- An expanded Appliance Input Table includes more appliances than ever before.




