The National Fuel Gas Code is the industry standard that designers, installers, and inspectors nationwide rely on to improve productivity and reduce accidents. And this new edition has been updated to reflect the most recent developments in construction materials, methods, and procedures. Only the 2002 NFPA 54 recognizes today's technologies and construction practices to help you work smarter! Major changes and revisions that will affect how you do your job include:

• Totally new treatment of the combustion air requirement that 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 that allows for smaller pipe size in branches and can be useful where lengths vary.
• Recognition of the new flammable vapor ignition-resistant water heaters that can be installed directly on garage floors rather than on an 18-inch elevation.
• Revised venting provisions that clarify procedures for corrugated liners and vent offsets.
• Reformatted pipe sizing and venting tables that ensure consistency and ease of use.
• An updated and expanded Appliance Input Table that includes more appliances than ever before.

Get the reliable safety guidance you need to meet the challenges you face every day.