2018 NFPA 54 Code Handbook - Current Edition
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  • Description

    Editor: Laura Moreno

    The 2018 edition NFPA 54 Handbook explains the "hows" and "whys" behind fuel gas safety compliance, so you are prepared to implement the latest Code.

    Fully updated and featuring a wealth of color visuals, NFPA's 2018 edition National Fuel Gas Code Handbook explains technical NFPA 54 requirements and fuel gas safety concepts -- so you can confidently answer questions from employees and owners, and verify that fuel gas piping, appliance, and venting jobs are in compliance. It's an essential tool for engineers, contractors, and consultants who need to ensure fuel gas jobs are done right the first time.

    Get to Know the Handbook


    This edition's handbook contributors are comprised of fuel gas safety experts.

    Expert commentary from recognized authorities in the field gives you the background, rationale, and practical tips you need for error-free design, installation, and inspection.

    The NFPA 54 Handbook combines Code rules with color visuals, updated commentary, new FAQs, and more! You'll save time with:

    • The complete 2018 edition NFPA 54/ANSI Z223.1: National Fuel Gas Code text for convenient reference
    • Shading and icons within the Code text, alerting you to changes to the 2018 edition of the Code
    • Commentary that helps you avoid errors and oversights -- including new commentary pertaining to arc-resistant jacketed or coated corrugated stainless steel tubing (CSST), changes to Schedule 10 piping and press-connect fitting allowances, and inspection of existing appliances when the building envelope has been modified
    • More than 200 visuals including color photos, graphics, and charts
    • Updated FAQs based on questions from the field that highlight vital aspects of gas safety you can't afford to overlook
    • A new National Fuel Gas Code 'At a Glance' feature, outlining where to find pertinent Piping Design and Appliance sections and tables in the Handbook
    • A supplement that summarizes research on CSST bonding related to lightning-related damage to fuel gas piping systems.
    • Other supplements including Fuel Gas Odorization and Procedure to Estimate Infiltration Rate for Residential Structures
    • Summary of Technical Changes from the 2015 to the 2018 edition of NFPA 54
    • Calculation Worksheets, including blank versions that users can reproduce and use

    Get the hands-on backup needed to complete jobs correctly and improve productivity.

    Published by NFPA, the Code source, the 2018 edition National Fuel Gas Code Handbook is a time-saving NFPA 54 companion for engineers, contractors, consultants, AHJs, designers, and architects. (Print, Approx. 576 pp., 2018)

  • Table of Contents (2018 Current Edition)



    History of the National Fuel Gas Code

    About the Contributors

    About the Editor

    NFPA 54 Summary of Technical Changes: 2018


    PART ONE — NFPA 54, National Fuel Gas Code, 2018 Edition, with Commentary

    Chapter 1: Administration

    1.1 Scope

    1.2 Purpose

    1.3 Retroactivity

    1.4 Equivalency

    1.5 Enforcement

    Chapter 2: Referenced Publications

    2.1 General

    2.2 NFPA Publications

    2.3 Other Publications

    2.4 References for Extracts in Mandatory Sections

    Chapter 3: Definitions

    3.1 General

    3.2 NFPA Official Definitions

    3.3 General Definitions

    Chapter 4: General

    4.1 Qualified Agency

    4.2 Interruption of Service

    4.3 Prevention of Accidental Ignition

    4.4 Noncombustible Material

    Chapter 5: Gas Piping System Design, Materials, and Components

    5.1 Piping Plan

    5.2 Provision for Location of Point of Delivery

    5.3 Interconnections Between Gas Piping Systems

    5.4 Sizing of Gas Piping Systems

    5.5 Operating Pressure

    5.6 Acceptable Piping Materials and Joining Methods

    5.7 Gas Meters

    5.8 Gas Pressure Regulators

    5.9 Overpressure Protection Devices

    5.10 Back Pressure Protection

    5.11 Low-Pressure Protection

    5.12 Shutoff Valves

    5.13 Excess Flow Valve(s)

    5.14 Expansion and Flexibility

    Chapter 6: Pipe Sizing

    6.1 Pipe Sizing Methods

    6.2 Sizing Natural Gas Piping Systems

    6.3 Sizing Propane Piping Systems

    6.4 Sizing Equations

    Chapter 7: Gas Piping Installation

    7.1 Installation of Underground Piping

    7.2 Installation of Aboveground Piping

    7.3 Concealed Piping in Buildings

    7.4 Piping in Vertical Chases

    7.5 Gas Pipe Turns

    7.6 Drips and Sediment Traps

    7.7 Outlets

    7.8 Manual Gas Shutoff Valves

    7.9 Prohibited Devices

    7.10 Systems Containing Gas–Air Mixtures Outside the Flammable Range

    7.11 Systems Containing Flammable Gas–Air Mixtures

    7.12 Electrical Bonding and Grounding

    7.13 Electrical Circuits

    7.14 Electrical Connections

    Chapter 8: Inspection, Testing, and Purging

    8.1 Pressure Testing and Inspection

    8.2 Piping System Leak Check

    8.3 Purging Requirements

    Chapter 9: Appliance, Equipment, and Accessory Installation

    9.1 General

    9.2 Accessibility and Clearance

    9.3 Air for Combustion and Ventilation

    9.4 Appliances on Roofs

    9.5 Appliances in Attics

    9.6 Appliance and Equipment Connections to Building Piping

    9.7 Electrical

    9.8 Room Temperature Thermostats

    Chapter 10: Installation of Specific Appliances

    10.1 General

    10.2 Air-Conditioning Appliances (Gas-Fired Air Conditioners and Heat Pumps)

    10.3 Central Heating Boilers and Furnaces

    10.4 Clothes Dryers

    10.5 Conversion Burners

    10.6 Decorative Appliances for Installation in Vented Fireplaces

    10.7 Gas Fireplaces, Vented

    10.8 Non-Recirculating Direct Gas-Fired Industrial Air Heaters

    10.9 Recirculating Direct Gas-Fired Industrial Air Heaters

    10.10 Duct Furnaces

    10.11 Floor Furnaces

    10.12 Food Service Appliance, Floor-Mounted

    10.13 Food Service Appliances, Counter Appliances

    10.14 Household Cooking Appliances

    10.15 Illuminating Appliances

    10.16 Incinerators, Commercial-Industrial

    10.17 Infrared Heaters

    10.18 Open-Top Broiler Units

    10.19 Outdoor Cooking Appliances

    10.20 Pool Heaters

    10.21 Refrigerators

    10.22 Room Heaters

    10.23 Stationary Gas Engines

    10.24 Gas-Fired Toilets

    10.25 Unit Heaters

    10.26 Wall Furnaces

    10.27 Water Heaters

    10.28 Compressed Natural Gas (CNG) Vehicular Fuel Systems

    10.29 Appliances for Installation in Manufactured Housing

    10.30 Fuel Cell Power Plants

    10.31 Outdoor Open Flame Decorative Appliances

    Chapter 11: Procedures to Be Followed to Place Appliance in Operation

    11.1 Adjusting the Burner Input

    11.2 Primary Air Adjustment

    11.3 Safety Shutoff Devices

    11.4 Automatic Ignition

    11.5 Protective Devices

    11.6 Checking the Draft

    11.7 Operating Instructions

    Chapter 12: Venting of Appliances

    12.1 Minimum Safe Performance

    12.2 General

    12.3 Specification for Venting

    12.4 Design and Construction

    12.5 Type of Venting System to Be Used

    12.6 Masonry, Metal, and Factory-Built Chimneys

    12.7 Gas Vents

    12.8 Single-Wall Metal Pipe

    12.9 Through-the-Wall Vent Termination

    12.10 Condensation Drain

    12.11 Vent Connectors for Category I Appliances

    12.12 Vent Connectors for Category II, Category III, and Category IV Appliances

    12.13 Draft Hoods and Draft Controls

    12.14 Manually Operated Dampers

    12.15 Automatically Operated Vent Dampers

    12.16 Obstructions

    Chapter 13: Sizing of Category I Venting Systems

    13.1 Additional Requirements to Single Appliance Vent

    13.2 Additional Requirements to Multiple-Appliance Vent



    Annex A: Explanatory Material

    Annex B: Sizing and Capacities of Gas Piping

    Annex C: Suggested Method of Checking for Leakage

    Annex D: Suggested Emergency Procedure for Gas Leaks

    Annex E: Flow of Gas Through Fixed Orifices

    Annex F: Sizing of Venting Systems Serving Appliances Equipped with Draft Hoods, Category I Appliances, and Appliances Listed for Use with Type B Vents

    Annex G: Recommended Procedure for Safety Inspection of an Existing Appliance Installation

    Annex H: Indoor Combustion Air Calculation Examples

    Annex I: Example of Combination of Indoor and Outdoor Combustion and Ventilation Opening Design

    Annex J: Enforcement

    Annex K: Informational References


    PART TWO — Supplements

    Supplement 1: Development of Revised Venting Guidelines

    Supplement 2: Fuel Gas Odorization

    Supplement 3: Calculation Worksheets

    Supplement 4: Clearance Distance for Gas Appliance Sidewall Venting

    Supplement 5: Purging

    Supplement 6: Corrugated Stainless Steel Tubing (CSST)



    Important Notices and Legal Disclaimers

  • Sample Pages (2018 Edition)

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  • eForms Table of Contents (2018)
    • Calculating Pipe Size Using the Longest Length Method
    • Calculating Pipe Size Using the Branch Length Method
    • Sizing Combustion Air Using the Standard Method
    • Sizing Combustion Air Using the KAIR Method
    • Calculating the Size of Combustion Air Openings
    • Calculating the Size of Reduced Building Area Openings
    • Calculating Vent Size for Single Appliance
    • Calculating Vent Size for Two (or more) Appliances
  • Also in NFPA 54, National Fuel Gas Code