{"id":191270,"date":"2024-10-19T12:05:18","date_gmt":"2024-10-19T12:05:18","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/icc-ifgc-commentary-2018-1stprint\/"},"modified":"2024-10-25T04:33:21","modified_gmt":"2024-10-25T04:33:21","slug":"icc-ifgc-commentary-2018-1stprint","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/icc\/icc-ifgc-commentary-2018-1stprint\/","title":{"rendered":"ICC IFGC Commentary 2018 1stPrint"},"content":{"rendered":"

A practical tool that helps you to master the code you deal with every day!This comprehensive publication provides a convenient reference for regulations in the 2018 International Fuel Gas Code\u00ae (IFGC\u00ae). Presented in an easy-to-reference format the commentary includes the full text of the code, including tables and figures, followed by corresponding commentary at the end of each section in one document. Every chapter begins with “General Comments” and “Purpose” sections followed by code and commentary to subsequent sections, tables and figures. This in-depth publication focuses on providing the full meaning and implications of the 2018 IFGC\u00ae. The commentaries are designed to suggest the most effective method of application, and the consequences of not adhering to the code. This is an excellent reference for code officials, engineers, architects, inspectors, plans examiners, contractors and anyone who needs a better understanding of the 2018 IFGC\u00ae.<\/p>\n

PDF Catalog<\/h4>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
PDF Pages<\/th>\nPDF Title<\/th>\n<\/tr>\n
1<\/td>\n2018 IFGC\u00ae CODE AND COMMENTARY <\/td>\n<\/tr>\n
2<\/td>\n2018 IFGC\u00ae CODE AND COMMENTARY TITLE PAGE <\/td>\n<\/tr>\n
3<\/td>\nCOPYRIGHT <\/td>\n<\/tr>\n
4<\/td>\nPREFACE <\/td>\n<\/tr>\n
6<\/td>\nTABLE OF CONTENTS <\/td>\n<\/tr>\n
8<\/td>\nCHAPTER 1: SCOPE AND ADMINISTRATION
GENERAL COMMENTS
PURPOSE
PART 1 – SCOPE AND APPLICATION
SECTION 101 (IFGC) GENERAL <\/td>\n<\/tr>\n
10<\/td>\nSECTION 102 (IFGC) APPLICABILITY <\/td>\n<\/tr>\n
12<\/td>\nPART 2\u2014ADMINISTRATION AND ENFORCEMENT
SECTION 103 (IFGC) DEPARTMENT OF INSPECTION <\/td>\n<\/tr>\n
13<\/td>\nSECTION 104 (IFGC) DUTIES AND POWERS OF THE CODE OFFICIAL <\/td>\n<\/tr>\n
15<\/td>\nSECTION 105 (IFGC) APPROVAL <\/td>\n<\/tr>\n
16<\/td>\nSECTION 106 (IFGC) PERMITS <\/td>\n<\/tr>\n
20<\/td>\nSECTION 107 (IFGC) INSPECTIONS AND TESTING <\/td>\n<\/tr>\n
23<\/td>\nSECTION 108 (IFGC) VIOLATIONS <\/td>\n<\/tr>\n
25<\/td>\nSECTION 109 (IFGC) MEANS OF APPEAL <\/td>\n<\/tr>\n
26<\/td>\nSECTION 110 (IFGC) TEMPORARY EQUIPMENT, SYSTEMS AND USES <\/td>\n<\/tr>\n
28<\/td>\nCHAPTER 2: DEFINITIONS
GENERAL COMMENTS
PURPOSE
SECTION 201 (IFGC) GENERAL
SECTION 202 (IFGC) GENERAL DEFINITIONS <\/td>\n<\/tr>\n
30<\/td>\nCOMMENTARY FIGURE 202(1) ANODELESS RISERS <\/td>\n<\/tr>\n
31<\/td>\nCOMMENTARY FIGURE 202(2) BAROMETRIC DRAFT REGULATOR <\/td>\n<\/tr>\n
32<\/td>\nCOMMENTARY FIGURE 202(3) LABEL FOR LOW-PRESSURE BOILER <\/td>\n<\/tr>\n
34<\/td>\nCOMMENTARY FIGURE 202(4) FACTORY-BUILT CHIMNEYS
COMMENTARY FIGURE 202(5) AIR-COOLED FACTORY-BUILT CHIMNEY SECTION <\/td>\n<\/tr>\n
37<\/td>\nCOMMENTARY FIGURE 202(6) DIRECT-VENT APPLIANCE
COMMENTARY FIGURE 202(7) DIRECT-VENT APPLIANCE <\/td>\n<\/tr>\n
38<\/td>\nCOMMENTARY FIGURE 202(8) DRAFT-HOOD-EQUIPPED APPLIANCE <\/td>\n<\/tr>\n
41<\/td>\nCOMMENTARY FIGURE 202(9) CHIMNEY FLUE LINER SYSTEM FOR GAS APPLIANCE <\/td>\n<\/tr>\n
42<\/td>\nCOMMENTARY FIGURE 202(10) GAS CONVENIENCE OUTLET
COMMENTARY FIGURE 202(11) GAS CONVENIENCE OUTLET <\/td>\n<\/tr>\n
44<\/td>\nCOMMENTARY FIGURE 202(12) TYPICAL APPLIANCE LABEL <\/td>\n<\/tr>\n
45<\/td>\nCOMMENTARY FIGURE 202(13) TYPICAL RESIDENTIAL GAS METER SETTING <\/td>\n<\/tr>\n
46<\/td>\nCOMMENTARY FIGURE 202(14) VENT OFFSET <\/td>\n<\/tr>\n
47<\/td>\nCOMMENTARY FIGURE 202(15) OXYGEN DEPLETION SAFETY SHUTOFF <\/td>\n<\/tr>\n
48<\/td>\nCOMMENTARY FIGURE 202(16) QUICK-DISCONNECT DEVICE <\/td>\n<\/tr>\n
49<\/td>\nCOMMENTARY FIGURE 202(17) SERVICE REGULATOR <\/td>\n<\/tr>\n
50<\/td>\nCOMMENTARY FIGURE 202(18) UNVENTED ROOM HEATER <\/td>\n<\/tr>\n
52<\/td>\nCOMMENTARY FIGURE 202(19) TRANSITION FITTINGS <\/td>\n<\/tr>\n
53<\/td>\nCOMMENTARY FIGURE 202(20) TYPE B VENT <\/td>\n<\/tr>\n
54<\/td>\nBIBLIOGRAPHY <\/td>\n<\/tr>\n
56<\/td>\nCHAPTER 3: GENERAL REGULATIONS
GENERAL COMMENTS
PURPOSE
SECTION 301 (IFGC) GENERAL <\/td>\n<\/tr>\n
59<\/td>\nCOMMENTARY FIGURE 301.5(1) TYPCIAL LABEL FOR A CATEGORY I GAS-FIRED FURNACE <\/td>\n<\/tr>\n
60<\/td>\nCOMMENTARY FIGURE 301.5(2) ROOFTOP HVAC UNIT LABEL <\/td>\n<\/tr>\n
61<\/td>\nSECTION 302 (IFGC) STRUCTURAL SAFETY <\/td>\n<\/tr>\n
62<\/td>\nCOMMENTARY FIGURE 302.3.2(1) CUTTING, NOTCHING AND BORING IN JOIST <\/td>\n<\/tr>\n
63<\/td>\nCOMMENTARY FIGURE 302.3.2(2) BORING JOISTS <\/td>\n<\/tr>\n
64<\/td>\nCOMMENTARY FIGURE 302.3.3 CUTTING AND NOTCHING OF STUDS <\/td>\n<\/tr>\n
65<\/td>\nSECTION 303 (IFGC) APPLIANCE LOCATION <\/td>\n<\/tr>\n
66<\/td>\nCOMMENTARY FIGURE 303.3(1) UNVENTED WALL-MOUNTED ROOM HEATER <\/td>\n<\/tr>\n
67<\/td>\nCOMMENTARY FIGURE 303.3(2) APPLIANCE ENCLOSURE
COMMENTARY FIGURE 303.3(3) GAS-FIRED CLOTHES DRYER IN BATHROOMS <\/td>\n<\/tr>\n
68<\/td>\nCOMMENTARY FIGURE 303.4 APPLIANCE PROTECTED FROM VEHICLE IMPACT <\/td>\n<\/tr>\n
69<\/td>\nSECTION 304 (IFGS) COMBUSTION, VENTILATION AND DILUTION AIR
COMMENTARY FIGURE 304.1(1) THE CHEMISTRY OF IDEAL COMBUSTION <\/td>\n<\/tr>\n
70<\/td>\nCOMMENTARY FIGURE 304.1(2) THE CHEMISTRY OF INCOMPLETE COMBUSTION <\/td>\n<\/tr>\n
71<\/td>\nCOMMENTARY FIGURE 304.1(3) COMBUSTION AIR SUPPLY METHODS <\/td>\n<\/tr>\n
72<\/td>\nCOMMENTARY FIGURE 304.1(4) DIRECT-VENT APPLIANCE
COMMENTARY FIGURE 304.1(5) DIRECT COMBUSTION AIR CONNECTION TO THE OUTDOORS <\/td>\n<\/tr>\n
73<\/td>\nCOMMENTARY FIGURE 304.1(6) BOILER WITH POWER BURNER <\/td>\n<\/tr>\n
74<\/td>\nCOMMENTARY FIGURE 304.4 DEPLETION OF COMBUSTION AIR <\/td>\n<\/tr>\n
75<\/td>\nEQUATION 3-1
EQUATION 3-2
FIGURE 304.5.3 ALL AIR FROM INSIDE THE BUILDING (see Section 304.5.3) <\/td>\n<\/tr>\n
76<\/td>\nCOMMENTARY FIGURE 304.5.2 CALCULATED VOLUMES <\/td>\n<\/tr>\n
78<\/td>\nCOMMENTARY FIGURE 304.5.3.2 COMBINING SPACES IN DIFFERENT STORIES <\/td>\n<\/tr>\n
79<\/td>\nFIGURE 304.6.1(1) ALL AIR FROM OUTDOORS\u2014INLET AIR FROM VENTILATED CRAWL SPACE AND OUTLET AIR TO VENTILATED ATTIC (see Section 304.6.1)
FIGURE 304.6.1(2) ALL AIR FROM OUTDOORS THROUGH VENTILATED ATTIC (see Section 304.6.1)
FIGURE 304.6.1(3) ALL AIR FROM OUTDOORS (see Section 304.6.1) <\/td>\n<\/tr>\n
80<\/td>\nFIGURE 304.6.2 SINGLE COMBUSTION AIR OPENING, ALL AIR FROM THE OUTDOORS (see Section 304.6.2) <\/td>\n<\/tr>\n
82<\/td>\nCOMMENTARY FIGURE 304.7.3 ROOM CONFIGURATION USED IN EXAMPLE 2 <\/td>\n<\/tr>\n
83<\/td>\nCOMMENTARY FIGURE 304.8(1) MECHANICAL COMBUSTION AIR\/MAKEUP AIR SUPPLY SYSTEM <\/td>\n<\/tr>\n
84<\/td>\nCOMMENTARY FIGURE 304.8(2) MECHANICAL COMBUSTION AIR SUPPLY SYSTEM
COMMENTARY FIGURE 304.8(3) MECHANICAL COMBUSTION AIR\/MAKEUP AIR SUPPLY SYSTEM <\/td>\n<\/tr>\n
85<\/td>\nCOMMENTARY FIGURE 304.9 MECHANICALLY SUPPLIED COMBUSTION AIR
COMMENTARY FIGURE 304.9.2 SIMPLIFIED EXAMPLE SCHEMATIC OF INTERLOCK BETWEEN APPLIANCE AND POWER COMBUSTION AIR UNIT <\/td>\n<\/tr>\n
87<\/td>\nCOMMENTARY FIGURE 304.10 SIMPLIFIED EXAMPLE SCHEMATIC OF COMBUSTION AIR DAMPER\/APPLIANCE INTERLOCK <\/td>\n<\/tr>\n
88<\/td>\nCOMMENTARY FIGURE 304.11 COMMON DUCT PROHIBITED
SECTION 305 (IFGC) INSTALLATION <\/td>\n<\/tr>\n
90<\/td>\nCOMMENTARY FIGURE 305.3(1) GAS-FIRED WATER HEATER INSTALLATION IN A GARAGE
COMMENTARY FIGURE 305.3(2) SOURCES OF IGNITION ELEVATED IN PRIVATE GARAGE <\/td>\n<\/tr>\n
91<\/td>\nCOMMENTARY FIGURE 305.3(3) GARAGE SPACE VS. LIVING SPACE <\/td>\n<\/tr>\n
92<\/td>\nCOMMENTARY FIGURE 305.3(4) EXAMPLE OF FLAMMABLE VAPOR IGNITION-RESISTANT WATER HEATER TECHNOLOGY
COMMENTARY FIGURE 305.3(5) EXAMPLE OF FLAMMABLE VAPOR IGNITION-RESISTANT WATER HEATER TECHNOLOGY
COMMENTARY FIGURE 305.3(6) EXAMPLE OF FLAMMABLE VAPOR IGNITION RESISTANT WATER HEATER TECHNOLOGY <\/td>\n<\/tr>\n
93<\/td>\nCOMMENTARY FIGURE 305.3.1 ELEVATION OF APPLIANCES NOT REQUIRED <\/td>\n<\/tr>\n
94<\/td>\nCOMMENTARY FIGURE 305.5(1) SUSPENDED UNIT HEATER
COMMENTARY FIGURE 305.5(2) PROTECTED BY WALLS <\/td>\n<\/tr>\n
95<\/td>\nCOMMENTARY FIGURE 305.5(3) PROTECTED BY GUARDS
COMMENTARY FIGURE 305.5(4) PROTECTED BY A PLATFORM <\/td>\n<\/tr>\n
96<\/td>\nCOMMENTARY FIGURE 305.5(5) PROTECTED BY A CURB STOP <\/td>\n<\/tr>\n
97<\/td>\nSECTION 306 (IFGC) ACCESS AND SERVICE SPACE <\/td>\n<\/tr>\n
98<\/td>\nCOMMENTARY FIGURE 306.3 ATTIC FURNACE INSTALLATION <\/td>\n<\/tr>\n
99<\/td>\nCOMMENTARY FIGURE 306.4 CRAWL SPACE FURNACE INSTALLATION <\/td>\n<\/tr>\n
101<\/td>\nCOMMENTARY FIGURE 306.5 APPLIANCE ACCESS
COMMENTARY FIGURE 306.5.1 ROOFTOP HVAC UNIT WITH WORK PLATFORM <\/td>\n<\/tr>\n
102<\/td>\nSECTION 307 (IFGC) CONDENSATE DISPOSAL <\/td>\n<\/tr>\n
103<\/td>\nCOMMENTARY FIGURE 306.6(1) GUARDS <\/td>\n<\/tr>\n
104<\/td>\nCOMMENTARY FIGURE 306.6(2) ROOF PLAN VIEW <\/td>\n<\/tr>\n
105<\/td>\nCOMMENTARY FIGURE 307.3 CONDENSATE PUMP
COMMENTARY FIGURE 307.4 AUXILIARY DRAIN PAN REQUIRED (WITH OR WITHOUT COOLING COIL) <\/td>\n<\/tr>\n
106<\/td>\nSECTION 308 (IFGS) CLEARANCE REDUCTION
COMMENTARY FIGURE 308.1 CLEARANCE TO COMBUSTIBLES\u2014EXAMPLES OF HOW TO MEASURE <\/td>\n<\/tr>\n
107<\/td>\nFIGURE 308.2(1) EXTENT OF PROTECTION NECESSARY TO REDUCE CLEARANCES FROM APPLIANCE OR VENT CONNECTIONS
FIGURE 308.2(2) WALL PROTECTOR CLEARANCE REDUCTION SYSTEM
FIGURE 308.2(3) MASONRY CLEARANCE REDUCTION SYSTEM <\/td>\n<\/tr>\n
108<\/td>\nTABLE 308.2 REDUCTION OF CLEARANCES WITH SPECIFIED FORMS OF PROTECTION <\/td>\n<\/tr>\n
109<\/td>\nCOMMENTARY FIGURE 308.2 REDUCED CLEARANCE TO COMBUSTIBLES <\/td>\n<\/tr>\n
111<\/td>\nSECTION 309 (IFGC) ELECTRICAL <\/td>\n<\/tr>\n
112<\/td>\nSECTION 310 (IFGS) ELECTRICAL BONDING
COMMENTARY FIGURE 310.1 GAS PIPE BONDING BY APPLIANCE BRANCH CIRCUIT <\/td>\n<\/tr>\n
113<\/td>\nCOMMENTARY FIGURE 310.2.1 POINT OF CONNECTION <\/td>\n<\/tr>\n
114<\/td>\nCOMMENTARY FIGURE 310.1.1(1) CSST BONDING
COMMENTARY FIGURE 310.1.1(2) ALTERNATIVE LOCATION FOR BONDING CLAMP <\/td>\n<\/tr>\n
116<\/td>\nCOMMENTARY FIGURE 310.2.3(3) GROUNDING ELECTRODES FOR CSST BONDING
BIBLIOGRAPHY <\/td>\n<\/tr>\n
117<\/td>\nCOMMENTARY FIGURE 310.3(1) NON-ARC-RESISTANT CSST
COMMENTARY FIGURE 310.3(2) ARC-RESISTANT CSST <\/td>\n<\/tr>\n
118<\/td>\nCHAPTER 4: GAS PIPING INSTALLATIONS
GENERAL COMMENTS
COMMENTARY FIGURE 400 GAS FLAMMABILITY LIMITS
PURPOSE <\/td>\n<\/tr>\n
119<\/td>\nSECTION 401 (IFGC) GENERAL
COMMENTARY FIGURE 401.1(1) SCOPE OF CODES <\/td>\n<\/tr>\n
120<\/td>\nCOMMENTARY FIGURE 401.1(2) TYPICAL POINT OF DELIVERY FOR NATURAL GAS SERVICE <\/td>\n<\/tr>\n
122<\/td>\nSECTION 402 (IFGS) PIPE SIZING <\/td>\n<\/tr>\n
123<\/td>\nEQUATION 4-1
EQUATION 4-2 <\/td>\n<\/tr>\n
124<\/td>\nTABLE 402.4 Cr AND Y VALUES FOR NATURAL GAS AND UNDILUTED PROPANE AT STANDARD CONDITIONS
COMMENTARY FIGURE 402.4 GAS PIPING LAYOUT <\/td>\n<\/tr>\n
125<\/td>\nCOMMENTARY FIGURE 402.4.1 STEEL PIPE BRANCH SYSTEM FOR ROOFTOP UNITS <\/td>\n<\/tr>\n
126<\/td>\nCOMMENTARY FIGURE 402.4.2(1) BRANCH PIPING SYSTEM WITH SCHEDULE 40 STEEL PIPE TRUNKLINE AND CSST <\/td>\n<\/tr>\n
127<\/td>\nCOMMENTARY FIGURE 402.4.2(2) SINGLE PRESSURE CSST MANIFOLD SYSTEM <\/td>\n<\/tr>\n
128<\/td>\nSUMMARY TABLE FOR BRANCH LENGTH METHOD EXAMPLE 2 <\/td>\n<\/tr>\n
129<\/td>\nSUMMARY TABLE FOR HYBRID PRESSURE EXAMPLE 2 <\/td>\n<\/tr>\n
130<\/td>\nCOMMENTARY FIGURE 402.4.3(1) HYBRID PRESSURE BRANCH SYSTEM
COMMENTARY FIGURE 402.4.3(2) HYBRID PRESSURE PARALLEL DISTRIBUTION SYSTEM <\/td>\n<\/tr>\n
133<\/td>\nTABLE 402.4(1) SCHEDULE 40 METALLIC PIPE <\/td>\n<\/tr>\n
134<\/td>\nTABLE 402.4(2) SCHEDULE 40 METALLIC PIPE <\/td>\n<\/tr>\n
135<\/td>\nTABLE 402.4(3) SCHEDULE 40 METALLIC PIPE <\/td>\n<\/tr>\n
136<\/td>\nTABLE 402.4(4) SCHEDULE 40 METALLIC PIPE <\/td>\n<\/tr>\n
137<\/td>\nTABLE 402.4(5) SCHEDULE 40 METALLIC PIPE <\/td>\n<\/tr>\n
138<\/td>\nTABLE 402.4(6) SCHEDULE 40 METALLIC PIPE <\/td>\n<\/tr>\n
139<\/td>\nTABLE 402.4(7) SCHEDULE 40 METALLIC PIPE <\/td>\n<\/tr>\n
140<\/td>\nTABLE 402.4(8) SEMIRIGID COPPER TUBING <\/td>\n<\/tr>\n
141<\/td>\nTABLE 402.4(9) SEMIRIGID COPPER TUBING <\/td>\n<\/tr>\n
142<\/td>\nTABLE 402.4(10) SEMIRIGID COPPER TUBING <\/td>\n<\/tr>\n
143<\/td>\nTABLE 402.4(11) SEMIRIGID COPPER TUBING <\/td>\n<\/tr>\n
144<\/td>\nTABLE 402.4(12) SEMIRIGID COPPER TUBING <\/td>\n<\/tr>\n
145<\/td>\nTABLE 402.4(13) SEMIRIGID COPPER TUBING <\/td>\n<\/tr>\n
146<\/td>\nTABLE 402.4(14) SEMIRIGID COPPER TUBING <\/td>\n<\/tr>\n
147<\/td>\nTABLE 402.4(15) CORRUGATED STAINLESS STEEL TUBING (CSST) <\/td>\n<\/tr>\n
148<\/td>\nTABLE 402.4(16) CORRUGATED STAINLESS STEEL TUBING (CSST) <\/td>\n<\/tr>\n
149<\/td>\nTABLE 402.4(17) CORRUGATED STAINLESS STEEL TUBING (CSST) <\/td>\n<\/tr>\n
150<\/td>\nTABLE 402.4(18) CORRUGATED STAINLESS STEEL TUBING (CSST) <\/td>\n<\/tr>\n
151<\/td>\nTABLE 402.4(19) CORRUGATED STAINLESS STEEL TUBING (CSST) <\/td>\n<\/tr>\n
152<\/td>\nTABLE 402.4(20) POLYETHYLENE PLASTIC PIPE <\/td>\n<\/tr>\n
153<\/td>\nTABLE 402.4(21) POLYETHYLENE PLASTIC PIPE <\/td>\n<\/tr>\n
154<\/td>\nTABLE 402.4(22) POLYETHYLENE PLASTIC PIPE <\/td>\n<\/tr>\n
155<\/td>\nTABLE 402.4(23) POLYETHYLENE PLASTIC TUBING
TABLE 402.4(24) POLYETHYLENE PLASTIC TUBING <\/td>\n<\/tr>\n
156<\/td>\nTABLE 402.4(25) SCHEDULE 40 METALLIC PIPE <\/td>\n<\/tr>\n
157<\/td>\nTABLE 402.4(26) SCHEDULE 40 METALLIC PIPE <\/td>\n<\/tr>\n
158<\/td>\nTABLE 402.4(27) SCHEDULE 40 METALLIC PIPE <\/td>\n<\/tr>\n
159<\/td>\nTABLE 402.4(28) SCHEDULE 40 METALLIC PIPE <\/td>\n<\/tr>\n
160<\/td>\nTABLE 402.4(29) SEMIRIGID COPPER TUBING <\/td>\n<\/tr>\n
161<\/td>\nTABLE 402.4(30) SEMIRIGID COPPER TUBING <\/td>\n<\/tr>\n
162<\/td>\nTABLE 402.4(31) SEMIRIGID COPPER TUBING <\/td>\n<\/tr>\n
163<\/td>\nTABLE 402.4(32) CORRUGATED STAINLESS STEEL TUBING (CSST) <\/td>\n<\/tr>\n
164<\/td>\nTABLE 402.4(33) CORRUGATED STAINLESS STEEL TUBING (CSST) <\/td>\n<\/tr>\n
165<\/td>\nTABLE 402.4(34) CORRUGATED STAINLESS STEEL TUBING (CSST) <\/td>\n<\/tr>\n
166<\/td>\nTABLE 402.4(35) POLYETHYLENE PLASTIC PIPE <\/td>\n<\/tr>\n
167<\/td>\nTABLE 402.4(36) POLYETHYLENE PLASTIC PIPE <\/td>\n<\/tr>\n
168<\/td>\nTABLE 402.4(37) POLYETHYLENE PLASTIC TUBING <\/td>\n<\/tr>\n
169<\/td>\nSECTION 403 (IFGS) PIPING MATERIALS <\/td>\n<\/tr>\n
170<\/td>\nCOMMENTARY FIGURE 403.5 PLASTIC-SHEATHED COPPER TUBING <\/td>\n<\/tr>\n
171<\/td>\nCOMMENTARY FIGURE 403.5.5(1) CSST AND SYSTEM COMPONENTS
COMMENTARY FIGURE 403.5.5(2) CSST FITTING
COMMENTARY FIGURE 403.5.5(3) CSST FITTING
COMMENTARY FIGURE 403.5.5(4) CSST FITTING
COMMENTARY FIGURE 403.5.5(5) MULTIPORT MANIFOLD INSTALLATION USING CSST <\/td>\n<\/tr>\n
172<\/td>\nCOMMENTARY FIGURE 403.5.5(6) TOP PLATE TUBING PROTECTION SHIELD <\/td>\n<\/tr>\n
173<\/td>\nCOMMENTARY FIGURE 403.5.5(7) LOW-PRESSURE GAS PIPING SYSTEM USING CSST
COMMENTARY FIGURE 403.5.5(8) MEDIUM-PRESSURE GAS PIPING SYSTEM USING CSST <\/td>\n<\/tr>\n
174<\/td>\nCOMMENTARY FIGURE 403.5.5(9) CSST MANUFACTURED FOR UNDERGROUND INSTALLATION
COMMENTARY FIGURE 403.5.5(10) EXCERPT FROM CSST MANUFACTURER\u2019S INSTALLATION INSTRUCTIONS <\/td>\n<\/tr>\n
175<\/td>\nCOMMENTARY FIGURE 403.5.5(11) EXCERPT FROM CSST MANUFACTURER\u2019S INSTALLATION INSTRUCTIONS
COMMENTARY FIGURE 403.5.5(12) MANIFOLD FOR 2 PSI PARALLEL DISTRIBUTION SYSTEM
COMMENTARY FIGURE 403.5.5(13) \u201cSTUB-OUT\u201d TERMINATION TRANSITION FITTING
COMMENTARY FIGURE 403.5.5(14) \u201cVALVE BOX\u201d TERMINATION TRANSITION FITTING
COMMENTARY FIGURE 403.5.5(15) TERMINATION TRANSITION FITTING <\/td>\n<\/tr>\n
176<\/td>\nCOMMENTARY FIGURE 403.6 APPROVED POLYETHYLENE GAS PIPING WITH MARKINGS IN ACCORDANCE WITH THE CODE AND ASTM D2513 <\/td>\n<\/tr>\n
177<\/td>\nCOMMENTARY FIGURE 403.6.1(1) SERVICE HEAD ADAPTERS
COMMENTARY FIGURE 403.6.1(2) SERVICE HEAD ADAPTERS
COMMENTARY FIGURE 403.6.1(3) FLEXIBLE ANODELESS RISER <\/td>\n<\/tr>\n
179<\/td>\nCOMMENTARY FIGURE 403.9 TAPERED THREAD COUPLING INCONNECTION TO FURNACE
TABLE 403.9.2 SPECIFICATIONS FOR THREADING METALLIC PIPE <\/td>\n<\/tr>\n
180<\/td>\nCOMMENTARY FIGURE 403.10.2 PRESS-CONNECT COPPER FITTING <\/td>\n<\/tr>\n
182<\/td>\nCOMMENTARY FIGURE 403.10.5(1) METER SETTING
COMMENTARY FIGURE 403.10.5(2) ELBOW WITH DRILLED AND TAPPED HOLE <\/td>\n<\/tr>\n
183<\/td>\nCOMMENTARY FIGURE 403.11(1) MECHANICAL JOINTS
COMMENTARY FIGURE 403.11(2) MECHANICAL JOINT <\/td>\n<\/tr>\n
184<\/td>\nCOMMENTARY FIGURE 403.11(3) PLASTIC PIPE TRANSITION FITTING
COMMENTARY FIGURE 403.11(4) PLASTIC PIPE TRANSITION FITTING
COMMENTARY FIGURE 403.12 FLANGED JOINTS <\/td>\n<\/tr>\n
185<\/td>\nSECTION 404 (IFGC) PIPING SYSTEM INSTALLATION <\/td>\n<\/tr>\n
186<\/td>\nCOMMENTARY FIGURE 404.3 PROHIBITED TOWNHOUSE INSTALLATION <\/td>\n<\/tr>\n
187<\/td>\nCOMMENTARY FIGURE 404.6 ABOVE GRADE ENTRANCE\/EXIT <\/td>\n<\/tr>\n
188<\/td>\nCOMMENTARY FIGURE 404.7 PIPE PROTECTION <\/td>\n<\/tr>\n
189<\/td>\nCOMMENTARY FIGURE 404.8 PIPING IN SOLID FLOORS <\/td>\n<\/tr>\n
190<\/td>\nCOMMENTARY FIGURE 404.8.2 PIPE UNDER SLAB BETWEEN INTERIOR POINTS <\/td>\n<\/tr>\n
191<\/td>\nCOMMENTARY FIGURE 404.10 LP-GAS PIPING ISOLATION <\/td>\n<\/tr>\n
192<\/td>\nCOMMENTARY FIGURE 404.12 MINIMUM BURIAL DEPTH <\/td>\n<\/tr>\n
193<\/td>\nCOMMENTARY FIGURE 404.14(1) UNDERGROUND CSST
COMMENTARY FIGURE 404.14(2) GAS PIPING LISTED FOR INSTALLATION BENEATH BUILDINGS <\/td>\n<\/tr>\n
194<\/td>\nCOMMENTARY FIGURE 404.14(3) UNDERGROUND CSST
COMMENTARY FIGURE 404.14(4) UNDERGROUND CSST <\/td>\n<\/tr>\n
195<\/td>\nCOMMENTARY FIGURE 404.17.1 PIPING UNDER SLABS <\/td>\n<\/tr>\n
196<\/td>\nSECTION 405 (IFGS) PIPING BENDS AND CHANGES IN DIRECTION <\/td>\n<\/tr>\n
197<\/td>\nSECTION 406 (IFGS) INSPECTION, TESTING AND PURGING <\/td>\n<\/tr>\n
198<\/td>\nCOMMENTARY FIGURE 406.1.4 PIPING ISOLATION ARRANGEMENT FOR TESTING <\/td>\n<\/tr>\n
199<\/td>\nCOMMENTARY FIGURE 406.3.3 MANUFACTURER\u2019S WARNING REGARDING PRESSURE TESTING OF GAS PIPING <\/td>\n<\/tr>\n
200<\/td>\nCOMMENTARY FIGURE 406.4(1) TYPICAL TEST SET-UP FOR AIR PRESSURE TESTING
COMMENTARY FIGURE 406.4(2) ELECTRONIC PRESSURE GAUGE <\/td>\n<\/tr>\n
201<\/td>\nCOMMENTARY FIGURE 406.4(3) LEAK DETECTOR INSTRUMENT
COMMENTARY FIGURE 406.4(4) ELECTRONIC LEAK DETECTOR INSTRUMENT <\/td>\n<\/tr>\n
204<\/td>\nTABLE 406.7.1.1 SIZE AND LENGTH OF PIPING <\/td>\n<\/tr>\n
206<\/td>\nSECTION 407 (IFGC) PIPING SUPPORT
SECTION 408 (IFGC) DRIPS AND SLOPED PIPING <\/td>\n<\/tr>\n
207<\/td>\nFIGURE 408.4 METHOD OF INSTALLING A TEE FITTING SEDIMENT TRAP
COMMENTARY FIGURE 408.4(1) EFFECTIVE SEDIMENT TRAP
COMMENTARY FIGURE 408.4(2) LESS EFFECTIVE OR INEFFECTIVE SEDIMENT TRAP CONFIGURATION <\/td>\n<\/tr>\n
208<\/td>\nSECTION 409 (IFGC) SHUTOFF VALVES
COMMENTARY FIGURE 409.1.1(1) TYPICAL BALL-TYPE GAS SHUTOFF VALVE
COMMENTARY FIGURE 409.1.1(2) BALL-TYPE GAS SHUTOFF VALVE DESIGNED TO MATE WITH A CONNECTOR
TABLE 409.1.1 MANUAL GAS VALVE STANDARDS <\/td>\n<\/tr>\n
210<\/td>\nCOMMENTARY FIGURE 409.5.1 ACCESS TO SHUTOFF VALVES FOR MOVABLE APPLIANCES <\/td>\n<\/tr>\n
212<\/td>\nCOMMENTARY FIGURE 409.7 SHUTOFF VALVE SUPPORT FOR TUBING SYSTEMS
SECTION 410 (IFGC) FLOW CONTROLS <\/td>\n<\/tr>\n
213<\/td>\nCOMMENTARY FIGURE 410.1(1) GAS PRESSURE REGULATORS
COMMENTARY FIGURE 410.1(2) SERVICE REGULATOR
COMMENTARY FIGURE 410.1(3) GAS PRESSURE REGULATOR <\/td>\n<\/tr>\n
214<\/td>\nCOMMENTARY FIGURE 410.1(4) SYSTEM PRESSURES <\/td>\n<\/tr>\n
215<\/td>\nCOMMENTARY FIGURE 410.2(1) SYSTEM PRESSURES
COMMENTARY FIGURE 410.2(2) PRESSURE REGULATOR\/OVERPRESSURE PROTECTION DEVICE ASSEMBLIES <\/td>\n<\/tr>\n
216<\/td>\nCOMMENTARY FIGURE 410.2(3) AT LEAST ONE UNION, INSTALLED UPSTREAM OR DOWNSTREAM, IS REQUIRED FOR AN MP REGULATOR CONNECTED TO RIGID PIPING
COMMENTARY FIGURE 410.2(4) MP REGULATOR AND APPLIANCE PRESSURE TEST PORT <\/td>\n<\/tr>\n
217<\/td>\nCOMMENTARY FIGURE 410.3(1) REGULATOR WITH VENT PROTECTION
COMMENTARY FIGURE 410.3(2) PRESSURE REGULATOR WITH VENT-LIMITING DEVICE <\/td>\n<\/tr>\n
218<\/td>\nCOMMENTARY FIGURE 410.4 EXAMPLE OF EXCESS FLOW VALVE
SECTION 411 (IFGC) APPLIANCE AND MANUFACTURED HOME CONNECTIONS <\/td>\n<\/tr>\n
219<\/td>\nCOMMENTARY FIGURE 411.1(1) PIPING SYSTEM SIZING AND APPLIANCE CONNECTION AND CONNECTOR SIZING <\/td>\n<\/tr>\n
220<\/td>\nCOMMENTARY FIGURE 411.1(2) QUICK-DISCONNECT DEVICE FOR USE WITH COMMERCIAL APPLIANCE CONNECTORS
COMMENTARY FIGURE 411.1(3) QUICK-DISCONNECT DEVICE FOR USE WITH COMMERCIAL APPLIANCE CONNECTORS
COMMENTARY FIGURE 411.1(4) CSST DIRECTLY CONNECTED TO NONMOVEABLE APPLIANCE <\/td>\n<\/tr>\n
221<\/td>\nCOMMENTARY FIGURE 411.1(5) CSST TERMINATED AT APPLIANCE LOCATION
COMMENTARY FIGURE 411.1(6) SEMIRIGID (FLEXIBLE) APPLIANCE CONNECTOR
COMMENTARY FIGURE 411.1(7) OUTDOOR MOBILE HOME CONNECTOR <\/td>\n<\/tr>\n
222<\/td>\nCOMMENTARY FIGURE 411.1(8) NATURAL GAS HOSE AND CONNECTOR FOR PORTABLE OUTDOOR GAS APPLIANCES
COMMENTARY FIGURE 411.1.1(1) COMMERCIAL COOKING APPLIANCE CONNECTOR WITH TRAVEL RESTRAINT
COMMENTARY FIGURE 411.1.1(2) COMMERCIAL COOKING APPLIANCE CONNECTOR WITH TRAVEL RESTRAINT <\/td>\n<\/tr>\n
223<\/td>\nCOMMENTARY FIGURE 411.1.1(3) COMMERCIAL COOKING APPLIANCE FUEL CONNECTORS
COMMENTARY FIGURE 411.1.1(4) COMMERCIAL COOKING APPLIANCE FUEL CONNECTORS <\/td>\n<\/tr>\n
224<\/td>\nCOMMENTARY FIGURE 411.1.3.1(1) APPLIANCE FUEL CONNECTOR
COMMENTARY FIGURE 411.1.3.1(2) APPLIANCE FUEL CONNECTOR <\/td>\n<\/tr>\n
225<\/td>\nCOMMENTARY FIGURE 411.1.3.3 CONNECTOR PIPING DOWNSTREAM OF SHUTOFF VALVE <\/td>\n<\/tr>\n
227<\/td>\nCOMMENTARY FIGURE 411.3(1) EXAMPLE OF ONE MANUFACTURER\u2019S INSTALLATION INSTRUCTIONS
COMMENTARY FIGURE 411.3(2) END VIEW OF FIGURE 411.3(1)
SECTION 412 (IFGC) LIQUEFIED PETROLEUM GAS MOTOR VEHICLE FUEL-DISPENSING FACILITIES <\/td>\n<\/tr>\n
229<\/td>\nSECTION 413 (IFGC) COMPRESSED NATURAL GAS MOTOR VEHICLE FUEL-DISPENSING FACILITIES <\/td>\n<\/tr>\n
232<\/td>\n[F] TABLE 413.9.2.3 SEPARATION DISTANCE FOR ATMOSPHERIC VENTING OF CNG
SECTION 414 (IFGC) SUPPLEMENTAL AND STANDBY GAS SUPPLY <\/td>\n<\/tr>\n
233<\/td>\nSECTION 415 (IFGS) PIPING SUPPORT INTERVALS
TABLE 415.1 SUPPORT OF PIPING
SECTION 416 (IFGS) OVERPRESSURE PROTECTION DEVICES <\/td>\n<\/tr>\n
235<\/td>\nBIBLIOGRAPHY <\/td>\n<\/tr>\n
236<\/td>\nCHAPTER 5: CHIMNEYS AND VENTS
GENERAL COMMENTS
PURPOSE
SECTION 501 (IFGC) GENERAL <\/td>\n<\/tr>\n
237<\/td>\nCOMMENTARY FIGURE 501.6 VENT DESIGNED FOR CATEGORY III AND IV (POSITIVE PRESSURE) APPLICATIONS <\/td>\n<\/tr>\n
240<\/td>\nCOMMENTARY FIGURE 501.13(1) MASONRY CHIMNEY RELINING SYSTEM
COMMENTARY FIGURE 501.13(2) MASONRY CHIMNEY RELINING SYSTEM
COMMENTARY FIGURE 501.13(3) MASONRY CHIMNEY RELINING BY INSTALLATION OF TYPE B VENT SYSTEM
COMMENTARY FIGURE 501.13(4) MASONRY CHIMNEY RELINING SYSTEM <\/td>\n<\/tr>\n
241<\/td>\nCOMMENTARY FIGURE 501.14 SPECIAL VENT SYSTEM FOR CATEGORY II, III and IV APPLIANCES
COMMENTARY FIGURE 501.15.1 APPLIANCE REPLACEMENTS AFFECTING EXISTING APPLIANCES <\/td>\n<\/tr>\n
243<\/td>\nSECTION 502 (IFGC) VENTS
COMMENTARY FIGURE 502.1(1) CATEGORY I FAN-ASSISTED FURNACE <\/td>\n<\/tr>\n
244<\/td>\nCOMMENTARY FIGURE 502.1(2) CATEGORY IV APPLIANCE (FURNACE)
COMMENTARY FIGURE 502.1(3) TYPE B GAS VENT SERVING TWO CATEGORY I APPLIANCES <\/td>\n<\/tr>\n
245<\/td>\nCOMMENTARY FIGURE 502.1(4) TYPE B VENT SECTIONS WITH AIR SPACE BETWEEN PIPE WALLS <\/td>\n<\/tr>\n
246<\/td>\nCOMMENTARY FIGURE 502.7 PLAN VIEW OF STUD WALL
SECTION 503 (IFGS) VENTING OF APPLIANCES <\/td>\n<\/tr>\n
247<\/td>\nCOMMENTARY FIGURE 502.7.1(1) DOOR SWING
COMMENTARY FIGURE 502.7.1(2) DOOR SWING <\/td>\n<\/tr>\n
248<\/td>\nCOMMENTARY FIGURE 503.2.3(1) DIRECT-VENT APPLIANCE
COMMENTARY FIGURE 503.2.3(2) DIRECT-VENT (SEPARATED COMBUSTION) UNIT HEATERS
COMMENTARY FIGURE 503.2.3(3) EXAMPLE OF MANUFACTURER\u2019S DETAIL FOR DIRECT-VENT APPLIANCE CONCENTRIC VENT-AIR INTAKE TERMINAL <\/td>\n<\/tr>\n
249<\/td>\nCOMMENTARY FIGURE 503.2.3(4) DIRECT-VENT APPLIANCES
COMMENTARY FIGURE 503.2.3(5) GRAVITY DIRECT-VENT WATER HEATER
COMMENTARY FIGURE 503.2.3(6) DIRECT-VENT SYSTEM COMPONENTS <\/td>\n<\/tr>\n
250<\/td>\nCOMMENTARY FIGURE 503.2.4(1) HOT WATER BOILER WITH INTEGRAL VENT FOR OUTDOOR INSTALLATION
COMMENTARY FIGURE 503.2.4(2) OUTDOOR DUCT FURNACE WITH INTEGRAL POWER VENTING
COMMENTARY FIGURE 503.2.4(3) ROOFTOP HVAC UNIT WITH INTEGRAL POWER VENT <\/td>\n<\/tr>\n
251<\/td>\nCOMMENTARY FIGURE 503.3.3(1) VERTICAL DRAFT INDUCER
COMMENTARY FIGURE 503.3.3(2) HORIZONTAL POWER EXHAUSTER <\/td>\n<\/tr>\n
252<\/td>\nCOMMENTARY FIGURE 503.3.3(3) HORIZONTAL POWER EXHAUSTERS
COMMENTARY FIGURE 503.3.3(4) VERTICAL POWER EXHAUSTERS
COMMENTARY FIGURE 503.3.3(5) VERTICAL POWER EXHAUSTERS
COMMENTARY FIGURE 503.3.3(6) POWER EXHAUSTER OUTDOOR TERMINAL-TYPE UNIT <\/td>\n<\/tr>\n
253<\/td>\nCOMMENTARY FIGURE 503.3.3(7) EXHAUSTER AND CONTROL PACKAGE
COMMENTARY FIGURE 503.3.3(8) TYPICAL POWER EXHAUSTER
COMMENTARY FIGURE 503.3.3(9) TYPICAL EXHAUSTER APPLICATIONS <\/td>\n<\/tr>\n
254<\/td>\nCOMMENTARY FIGURE 503.3.3(10) DRAFT INDUCER
COMMENTARY FIGURE 503.3.3(11) DRAFT INDUCER
COMMENTARY FIGURE 503.3.3(12) POWER-VENTED WATER HEATER
COMMENTARY FIGURE 503.3.3(13) DRAFT CONDITIONS WITH EQUIPMENT BURNER-INLET BLOWER <\/td>\n<\/tr>\n
255<\/td>\nCOMMENTARY FIGURE 503.3.3(14) SIMPLIFIED SAMPLE INTERLOCK CIRCUIT DIAGRAM FOR APPLIANCE SERVED BY POWER EXHAUSTER(SHOWN FOR ILLUSTRATIVE PURPOSE ONLY) <\/td>\n<\/tr>\n
256<\/td>\nCOMMENTARY FIGURE 503.3.6 VENTS THROUGH AIR PLENUMS <\/td>\n<\/tr>\n
257<\/td>\nCOMMENTARY FIGURE 503.4 DETERMINING VENT HEIGHT
TABLE 503.4 TYPE OF VENTING SYSTEM TO BE USED <\/td>\n<\/tr>\n
258<\/td>\nCOMMENTARY FIGURE 503.4.1(1) DIRECT-VENT APPLIANCE
COMMENTARY FIGURE 503.4.1(2) POLYPROPYLENE PLASTIC VENT SYSTEM <\/td>\n<\/tr>\n
259<\/td>\nCOMMENTARY FIGURE 503.4.1(3) DIRECT-VENT APPLIANCE
COMMENTARY FIGURE 503.4.1(4) DIRECT-VENT APPLIANCE <\/td>\n<\/tr>\n
261<\/td>\nCOMMENTARY FIGURE 503.5.4(1) LOW-HEAT CHIMNEY TERMINATIONS
COMMENTARY FIGURE 503.5.4(2) DECORATIVE SHROUDS <\/td>\n<\/tr>\n
263<\/td>\nCOMMENTARY FIGURE 503.5.6.1(1) CHIMNEY LINING SYSTEM FOR GAS APPLIANCES
COMMENTARY FIGURE 503.5.6.1(2) DIRECT-VENT APPLIANCE FOR INSTALLATION IN SOLID FUEL FIREPLACE <\/td>\n<\/tr>\n
266<\/td>\nFIGURE 503.6.5 TERMINATION LOCATIONS FOR GAS VENTS WITH LISTED CAPS 12 INCHES OR LESS IN SIZE NOT LESS THAN 8 FEET FROM A VERTICAL WALL <\/td>\n<\/tr>\n
267<\/td>\nCOMMENTARY FIGURE 503.6.5 TOP LOCATION RULES
COMMENTARY FIGURE 503.6.5.1 DECORATIVE SHROUDS <\/td>\n<\/tr>\n
268<\/td>\nCOMMENTARY FIGURE 503.6.8 B-VENT TERMINATIONS WITH RESPECT TO FORCED AIR INTAKES <\/td>\n<\/tr>\n
270<\/td>\nCOMMENTARY FIGURE 503.6.11.1(1) APPLIANCE AND VENT SEPARATED FROM LIVING SPACE
COMMENTARY FIGURE 503.6.11.1(2) APPLIANCE CLOSETS ACCESSED FROM OUTDOOR BALCONY <\/td>\n<\/tr>\n
272<\/td>\nCOMMENTARY FIGURE 503.6.14 FASTENER PENETRATIONS <\/td>\n<\/tr>\n
275<\/td>\nCOMMENTARY FIGURE 503.8(1) MECHANICAL DRAFT VENTING SYSTEM EXHAUSTER TERMINATIONS <\/td>\n<\/tr>\n
276<\/td>\nCOMMENTARY FIGURE 503.8(2) EXAMPLE OF MANUFACTURER\u2019S DETAIL FOR DIRECT-VENT APPLIANCE
COMMENTARY FIGURE 503.8(3) EXAMPLE OF MANUFACTURER\u2019S DETAIL FOR DIRECT-VENT APPLIANCE VENT AND COMBUSTION AIR TERMINALS <\/td>\n<\/tr>\n
277<\/td>\nCOMMENTARY FIGURE 503.8(4) THROUGH-THE-WALL DIRECT VENT TERMINATION FOR APPLIANCES GREATER THAN150,000 BTU\/HR INPUT
COMMENTARY FIGURE 503.8(5) VENT TERMINATION
TABLE 503.8 THROUGH-THE-WALL, DIRECT-VENT TERMINATION CLEARANCES <\/td>\n<\/tr>\n
278<\/td>\nCOMMENTARY FIGURE 503.10.2.2 LISTED BENDABLE DOUBLE-WALL CONNECTOR <\/td>\n<\/tr>\n
279<\/td>\nTABLE 503.10.2.4 MINIMUM THICKNESS FOR GALVANIZED STEEL VENT CONNECTORS FOR LOW-HEAT APPLIANCES
TABLE 503.10.2.5 MINIMUM THICKNESS FOR STEEL VENT CONNECTORS FOR MEDIUM-HEAT APPLIANCES <\/td>\n<\/tr>\n
281<\/td>\nCOMMENTARY FIGURE 503.10.3.4(1) MANIFOLD SIZING
COMMENTARY FIGURE 503.10.3.4(2) COMMON VENT OFFSET AND MANIFOLD <\/td>\n<\/tr>\n
282<\/td>\nCOMMENTARY FIGURE 503.10.4.1 OPPOSING OPENINGS IN CHIMNEY <\/td>\n<\/tr>\n
283<\/td>\nTABLE 503.10.5 CLEARANCES FOR CONNECTORS
COMMENTARY FIGURE 503.10.8 VENT HEIGHT <\/td>\n<\/tr>\n
285<\/td>\nCOMMENTARY FIGURE 503.10.13 TYPE B VENT CONNECTOR PENETRATIONS
COMMENTARY FIGURE 503.12.1 DRAFT-HOOD-EQUIPPED APPLIANCE <\/td>\n<\/tr>\n
288<\/td>\nCOMMENTARY FIGURE 503.14 AUTOMATIC VENT DAMPERS <\/td>\n<\/tr>\n
289<\/td>\nSECTION 504 (IFGS) SIZING OF CATEGORY I APPLIANCE VENTING SYSTEMS
COMMENTARY FIGURE 504.1(1) COMBUSTION PROCESS FOR NATURAL GAS <\/td>\n<\/tr>\n
290<\/td>\nCOMMENTARY FIGURE 504.1(2) FLUE GAS COMPOSITION
COMMENTARY FIGURE 504.1(3) DRAFT-HOOD APPLIANCE COMPARED TO FAN-ASSISTED APPLIANCE <\/td>\n<\/tr>\n
291<\/td>\nCOMMENTARY FIGURE 504.1(4) ILLUSTRATION OF THE BASIC PRINCIPLE OF FAN-ASSISTED COMBUSTION
COMMENTARY FIGURE 504.1(5) FAN-ASSISTED HOT WATER BOILER <\/td>\n<\/tr>\n
292<\/td>\nCOMMENTARY FIGURE 504.2(1) EXAMPLE OF INDIVIDUAL VENT DIMENSIONS <\/td>\n<\/tr>\n
293<\/td>\nCOMMENTARY FIGURE 504.2(2) INDIVIDUAL VENT\u2014LATERAL AND HEIGHT
COMMENTARY FIGURE 504.2.1 CATEGORY I NATURAL DRAFT HOT WATER BOILER WITH AUTOMATIC VENT DAMPER <\/td>\n<\/tr>\n
297<\/td>\nCOMMENTARY FIGURE 504.2.9(1) HEIGHT ABOVE ROOF <\/td>\n<\/tr>\n
298<\/td>\nCOMMENTARY FIGURE 504.2.9(2) MASONRY CHIMNEY COMPARED TO TYPE B VENT
COMMENTARY FIGURE 504.2.9(3) EXTERIOR CHIMNEY SIZING-EXAMPLE <\/td>\n<\/tr>\n
301<\/td>\nCOMMENTARY FIGURE 504.3(1) COMBINED VENT DIMENSIONS <\/td>\n<\/tr>\n
302<\/td>\nCOMMENTARY FIGURE 504.3(2) FAN AND NAT VENT SIZING EXAMPLE <\/td>\n<\/tr>\n
305<\/td>\nTABLE 504.3.2 MAXIMUM VENT CONNECTOR LENGTH <\/td>\n<\/tr>\n
307<\/td>\nCOMMENTARY FIGURE 504.3.5 COMMON VENT OFFSET IN ATTIC FOR THE PURPOSE OF AVOIDING A STREET-SIDE ROOF PENETRATION <\/td>\n<\/tr>\n
308<\/td>\nCOMMENTARY FIGURE 504.3.6(1) OFFSET IN COMMON VENT AND CONNECTORS
COMMENTARY FIGURE 504.3.6(2) TYPE B VENT ADJUSTABLE 45-DEGREE ELBOW FITTING
COMMENTARY FIGURE 504.3.6(3) TYPE B VENT ADJUSTABLE 90-DEGREE ELBOW FITTING <\/td>\n<\/tr>\n
309<\/td>\nCOMMENTARY FIGURE 504.3.9(1) TYPE B VENT REDUCING TEE
COMMENTARY FIGURE 504.3.9(2) TYPE B VENT REDUCING WYE <\/td>\n<\/tr>\n
310<\/td>\nCOMMENTARY FIGURE 504.3.9.1 SINGLE-WALL TEES AND WYES PROHIBITED IN TYPE B COMMON VENT SYSTEMS
COMMENTARY FIGURE 504.3.11 CONNECTOR RISE <\/td>\n<\/tr>\n
312<\/td>\nCOMMENTARY FIGURE 504.3.20 EXTERIOR CHIMNEY SIZING\u2014EXAMPLE <\/td>\n<\/tr>\n
313<\/td>\nSECTION 505 (IFGC) DIRECT-VENT, INTEGRAL VENT, MECHANICAL VENT AND VENTILATION\/EXHAUST HOOD VENTING <\/td>\n<\/tr>\n
314<\/td>\nCOMMENTARY FIGURE 505.1.1(1) EXHAUST HOOD INTERLOCK WITH COOKING APPLIANCES (SOLENOID) <\/td>\n<\/tr>\n
315<\/td>\nCOMMENTARY FIGURE 505.1.1(2) PROHIBITED SOLENOID VALVE BYPASS
SECTION 506 (IFGC) FACTORY-BUILT CHIMNEYS <\/td>\n<\/tr>\n
316<\/td>\nCOMMENTARY FIGURE 506.1(1) FACTORY-BUILT CHIMNEY
COMMENTARY FIGURE 506.1(2) AIR-COOLED FACTORY-BUILT CHIMNEY SYSTEM
BIBLIOGRAPHY <\/td>\n<\/tr>\n
317<\/td>\nTABLE 504.2(1) TYPE B DOUBLE-WALL GAS VENT <\/td>\n<\/tr>\n
318<\/td>\nTABLE 504.2(1)\u2014continued TYPE B DOUBLE-WALL GAS VENT <\/td>\n<\/tr>\n
319<\/td>\nTABLE 504.2(1)\u2014continued TYPE B DOUBLE-WALL GAS VENT <\/td>\n<\/tr>\n
320<\/td>\nTABLE 504.2(1)\u2014continued TYPE B DOUBLE-WALL GAS VENT <\/td>\n<\/tr>\n
321<\/td>\nTABLE 504.2(2) TYPE B DOUBLE-WALL GAS VENT <\/td>\n<\/tr>\n
322<\/td>\nTABLE 504.2(2)\u2014continued TYPE B DOUBLE-WALL GAS VENT <\/td>\n<\/tr>\n
323<\/td>\nTABLE 504.2(3) MASONRY CHIMNEY <\/td>\n<\/tr>\n
324<\/td>\nTABLE 504.2(3)\u2014continued MASONRY CHIMNEY <\/td>\n<\/tr>\n
325<\/td>\nTABLE 504.2(4) MASONRY CHIMNEY <\/td>\n<\/tr>\n
326<\/td>\nTABLE 504.2(4)\u2014continued MASONRY CHIMNEY <\/td>\n<\/tr>\n
327<\/td>\nTABLE 504.2(5) SINGLE-WALL METAL PIPE OR TYPE B ASBESTOS CEMENT VENT <\/td>\n<\/tr>\n
328<\/td>\nTABLE 504.2(6) EXTERIOR MASONRY CHIMNEY <\/td>\n<\/tr>\n
329<\/td>\nTABLE 504.3(1) TYPE B DOUBLE-WALL VENT <\/td>\n<\/tr>\n
330<\/td>\nTABLE 504.3(1)\u2014continued TYPE B DOUBLE-WALL VENT <\/td>\n<\/tr>\n
331<\/td>\nTABLE 504.3(2) TYPE B DOUBLE-WALL VENT <\/td>\n<\/tr>\n
332<\/td>\nTABLE 504.3(3) MASONRY CHIMNEY <\/td>\n<\/tr>\n
333<\/td>\nTABLE 504.3(4) MASONRY CHIMNEY <\/td>\n<\/tr>\n
334<\/td>\nTABLE 504.3(5) SINGLE-WALL METAL PIPE OR TYPE ASBESTOS CEMENT VENT <\/td>\n<\/tr>\n
335<\/td>\nTABLE 504.3(6a) EXTERIOR MASONRY CHIMNEY
TABLE 504.3(6b) EXTERIOR MASONRY CHIMNEY
TABLE 504.3(6b) EXTERIOR MASONRY CHIMNEY\u2014continued <\/td>\n<\/tr>\n
336<\/td>\nTABLE 504.3(7a) EXTERIOR MASONRY CHIMNEY
TABLE 504.3(7b) EXTERIOR MASONRY CHIMNEY
TABLE 504.3(7b) EXTERIOR MASONRY CHIMNEY\u2014continued <\/td>\n<\/tr>\n
338<\/td>\nCHAPTER 6: SPECIFIC APPLIANCES
GENERAL COMMENTS
PURPOSE
SECTION 601 (IFGC) GENERAL
SECTION 602 (IFGC) DECORATIVE APPLIANCES FOR INSTALLATION IN FIREPLACES
COMMENTARY FIGURE 602.1 VENTED GAS LOG SET <\/td>\n<\/tr>\n
340<\/td>\nCOMMENTARY FIGURE 602.2(1) COMBINATION GAS CONTROL
SECTION 603 (IFGC) LOG LIGHTERS
SECTION 604 (IFGC) VENTED GAS FIREPLACES (DECORATIVE APPLIANCES) <\/td>\n<\/tr>\n
341<\/td>\nCOMMENTARY FIGURE 602.2(2) COMBINATION GAS CONTROL FOR APPLIANCES
COMMENTARY FIGURE 604.1(1) VENTED DECORATIVE APPLIANCE
COMMENTARY FIGURE 604.1(2) DIRECT-VENT DECORATIVE APPLIANCE <\/td>\n<\/tr>\n
342<\/td>\nCOMMENTARY FIGURE 604.1(3) DIRECT-VENT GAS FIREPLACE
SECTION 605 (IFGC) VENTED GAS FIREPLACE HEATERS
COMMENTARY FIGURE 605.1 VENTED GAS FIREPLACE HEATER
SECTION 606 (IFGC) INCINERATORS AND CREMATORIES <\/td>\n<\/tr>\n
343<\/td>\nSECTION 607 (IFGC) COMMERCIAL-INDUSTRIAL INCINERATORS
SECTION 608 (IFGC) VENTED WALL FURNACES <\/td>\n<\/tr>\n
344<\/td>\nSECTION 609 (IFGC) FLOOR FURNACES
COMMENTARY FIGURE 609.1 FLOOR FURNACE <\/td>\n<\/tr>\n
345<\/td>\nSECTION 610 (IFGC) DUCT FURNACES
COMMENTARY FIGURE 610.1(1) INTEGRAL POWER-VENTED OUTDOOR DUCT FURNACE
COMMENTARY FIGURE 610.1(2) INTEGRAL GRAVITY-VENTED OUTDOOR DUCT FURNACE <\/td>\n<\/tr>\n
346<\/td>\nCOMMENTARY FIGURE 610.1(3) OUTDOOR DUCT FURNACES WITH AIR HANDLER
COMMENTARY FIGURE 610.1(4) DUCT FURNACE
SECTION 611 (IFGC) NONRECIRCULATING DIRECT-FIRED INDUSTRIAL AIR HEATERS <\/td>\n<\/tr>\n
347<\/td>\nCOMMENTARY FIGURE 611.1 DIRECT-FIRED MAKE-UP AIR HEATER <\/td>\n<\/tr>\n
348<\/td>\nSECTION 612 (IFGC) RECIRCULATING DIRECT-FIRED INDUSTRIAL AIR HEATERS <\/td>\n<\/tr>\n
349<\/td>\nCOMMENTARY FIGURE 612.1(1) BASIC PRINCIPLE OF DIRECT-FIRED SPACE HEATING APPLIANCE
COMMENTARY FIGURE 612.1(2) BASIC PRINCIPLE OF INDIRECT-FIRED SPACE HEATING APPLIANCE <\/td>\n<\/tr>\n
350<\/td>\nSECTION 613 (IFGC) CLOTHES DRYERS
SECTION 614 (IFGC) CLOTHES DRYER EXHAUST <\/td>\n<\/tr>\n
351<\/td>\nCOMMENTARY FIGURE 613.1 TYPE 1 CLOTHES DRYER LABEL <\/td>\n<\/tr>\n
353<\/td>\nCOMMENTARY FIGURE 614.4.1 CLOTHES DRYER EXHAUST TERMINATION
COMMENTARY FIGURE 614.5(1) DEDPV <\/td>\n<\/tr>\n
354<\/td>\nCOMMENTARY FIGURE 614.5(2) DEDPV <\/td>\n<\/tr>\n
356<\/td>\nCOMMENTARY FIGURE 614.8.2(1) DUCT JOINTS
COMMENTARY FIGURE 614.8.2(2) DRYER EXHAUST DUCTS IN FRAMING CAVITIES <\/td>\n<\/tr>\n
357<\/td>\n[M] TABLE 614.8.4.1 DRYER EXHAUST DUCT FITTING EQUIVALENT LENGTH <\/td>\n<\/tr>\n
358<\/td>\nCOMMENTARY FIGURE 614.8.5 EXAMPLE OF A DRYER EXHAUST LENGTH LABEL <\/td>\n<\/tr>\n
359<\/td>\nCOMMENTARY FIGURE 614.9 MULTIPLE DRYER EXHAUST SYSTEM <\/td>\n<\/tr>\n
361<\/td>\nSECTION 615 (IFGC) SAUNA HEATERS <\/td>\n<\/tr>\n
362<\/td>\nSECTION 616 (IFGC) ENGINE AND GAS TURBINE-POWERED EQUIPMENT
SECTION 617 (IFGC) POOL AND SPA HEATERS
SECTION 618 (IFGC) FORCED-AIR WARM-AIR FURNACES <\/td>\n<\/tr>\n
364<\/td>\nSECTION 619 (IFGC) CONVERSION BURNERS
SECTION 620 (IFGC) UNIT HEATERS
COMMENTARY FIGURE 620.1(1) DIRECT-VENT UNIT HEATER
COMMENTARY FIGURE 620.1(2) POWER-VENTED UNIT HEATER <\/td>\n<\/tr>\n
365<\/td>\nFIGURE 620.1(3) UNIT HEATER VENTING (TYPICAL)
COMMENTARY FIGURE 620.1(4) DRAFT-HOOD-EQUIPPED UNIT HEATER <\/td>\n<\/tr>\n
366<\/td>\nCOMMENTARY FIGURE 620.1(5) FUNDAMENTAL COMPONENTS OF UNIT HEATER
COMMENTARY FIGURE 620.2 UNIT HEATER SUPPORT
SECTION 621 (IFGC) UNVENTED ROOM HEATERS <\/td>\n<\/tr>\n
367<\/td>\nCOMMENTARY FIGURE 621.1(1) UNVENTED ROOM HEATER
COMMENTARY FIGURE 621.1(2) FIREBOX FOR UNVENTED ROOM HEATER
COMMENTARY FIGURE 621.2 UNVENTED ROOM HEATER (DECORATIVE) <\/td>\n<\/tr>\n
368<\/td>\nSECTION 622 (IFGC) VENTED ROOM HEATERS
SECTION 623 (IFGC) COOKING APPLIANCES <\/td>\n<\/tr>\n
369<\/td>\nCOMMENTARY FIGURE 622.1(1) VENTED GAS FIREPLACE HEATER
COMMENTARY FIGURE 622.1(2) VENTED ROOM HEATER <\/td>\n<\/tr>\n
370<\/td>\nCOMMENTARY FIGURE 623.1(1) COMMERCIAL OVEN
COMMENTARY FIGURE 623.1(2) COMMERCIAL DECK OVEN
COMMENTARY FIGURE 623.2(1) DOMESTIC RANGE
COMMENTARY FIGURE 623.2(2) DOMESTIC RANGE <\/td>\n<\/tr>\n
371<\/td>\nCOMMENTARY FIGURE 623.3(1) DOMESTIC (HOUSEHOLD) RANGE
COMMENTARY FIGURE 623.3(2) HOUSEHOLD-TYPE COOKING APPLIANCE LABEL <\/td>\n<\/tr>\n
372<\/td>\nCOMMENTARY FIGURE 623.7 CLEARANCE ABOVE COOKING TOP
SECTION 624 (IFGC) WATER HEATERS <\/td>\n<\/tr>\n
373<\/td>\nCOMMENTARY FIGURE 624.2(1) DIRECT-VENT WATER HEATER DESIGNED FOR BOTH POTABLE WATER HEATING AND SPACE HEATING APPLICATIONS
COMMENTARY FIGURE 624.2(2) WATER HEATER LABEL INDICATING SUITABILITY FOR BOTH POTABLE WATER HEATING AND SPACE HEATING
SECTION 625 (IFGC) REFRIGERATORS <\/td>\n<\/tr>\n
374<\/td>\nSECTION 626 (IFGC) GAS-FIRED TOILETS
SECTION 627 (IFGC) AIR-CONDITIONING APPLIANCES <\/td>\n<\/tr>\n
375<\/td>\nSECTION 628 (IFGC) ILLUMINATING APPLIANCES <\/td>\n<\/tr>\n
376<\/td>\nSECTION 629 (IFGC) SMALL CERAMIC KILNS
SECTION 630 (IFGC) INFRARED RADIANT HEATERS <\/td>\n<\/tr>\n
377<\/td>\nCOMMENTARY FIGURE 630.1(1) CERAMIC BURNER INFRARED RADIANT HEATER
COMMENTARY FIGURE 630.1(2) TUBE-TYPE INFRARED RADIANT HEATER
COMMENTARY FIGURE 630.1(3) TUBE-TYPE INFRARED RADIANT HEATER <\/td>\n<\/tr>\n
378<\/td>\nCOMMENTARY FIGURE 630.1(4) SAMPLE LABEL INFRARED RADIANT TUBE HEATER
SECTION 631 (IFGC) BOILERS <\/td>\n<\/tr>\n
379<\/td>\nCOMMENTARY FIGURE 631.1(1) STEAM HEATING BOILER WITH GAUGE-GLASS, LOW WATER CUTOFF CONTROL, PRESSURE GAUGE, PRESSURE LIMIT CONTROL AND AUTOMATIC VENT DAMPER
COMMENTARY FIGURE 631.1(2) STEAM BOILER WITH POWER BURNER, LOW-WATER CUTOFF CONTROLS AND PRESSURE CONTROLS <\/td>\n<\/tr>\n
380<\/td>\nCOMMENTARY FIGURE 631.2(1) ELECTRONIC PROBE-TYPE LOW-WATER CUTOFF CONTROL WITH GAUGE GLASS AND TRI-COCKS FOR STEAM BOILER APPLICATION
COMMENTARY FIGURE 631.2(2) ELECTRONIC PROBE-TYPE LOW-WATER CUTOFF CONTROL FOR HOT WATER BOILER APPLICATION
COMMENTARY FIGURE 631.2(3) ELECTRONIC PROBE-TYPE LOW-WATER CUTOFF CONTROL FOR HOT WATER BOILER APPLICATION
SECTION 632 (IFGC) EQUIPMENT INSTALLED IN EXISTING UNLISTED BOILERS
SECTION 633 (IFGC) STATIONARY FUEL-CELL POWER SYSTEMS
SECTION 634 (IFGS) CHIMNEY DAMPER OPENING AREA <\/td>\n<\/tr>\n
381<\/td>\nTABLE 634.1 FREE OPENING AREA OF CHIMNEY DAMPER FOR VENTING FLUE GASES FROM UNLISTED DECORATIVE APPLIANCES FOR INSTALLATION IN VENTED FIREPLACES
SECTION 635 (IFGC) GASEOUS HYDROGEN SYSTEMS
SECTION 636 (IFGC) OUTDOOR DECORATIVE APPLIANCES
COMMENTARY FIGURE 636.1 OUTDOOR (CAMPFIRE) DECORATIVE APPLIANCE
BIBLIOGRPAHY <\/td>\n<\/tr>\n
382<\/td>\nCHAPTER 7: GASEOUS HYDROGEN SYSTEMS
GENERAL COMMENTS
COMMENTARY FIGURE 700(1) ELECTROLYSIS OF WATER
PURPOSE <\/td>\n<\/tr>\n
383<\/td>\nCOMMENTARY FIGURE 700(2) FUEL CELL PRINCIPLE OF OPERATION
COMMENTARY FIGURE 700(3) FUEL CELL PRINCIPLE OF OPERATION <\/td>\n<\/tr>\n
384<\/td>\nSECTION 701 (IFGC) GENERAL
SECTION 702 (IFGC) GENERAL DEFINITIONS
COMMENTARY FIGURE 702.1 HYDROGEN-GENERATING APPLIANCE <\/td>\n<\/tr>\n
385<\/td>\nSECTION 703 (IFGC) GENERAL REQUIREMENTS <\/td>\n<\/tr>\n
386<\/td>\nSECTION 704 (IFGC) PIPING, USE AND HANDLING <\/td>\n<\/tr>\n
389<\/td>\nSECTION 705 (IFGC) TESTING OF HYDROGEN PIPING SYSTEMS <\/td>\n<\/tr>\n
391<\/td>\nSECTION 706 (IFGC) LOCATION OF GASEOUS HYDROGEN SYSTEMS
SECTION 707 (IFGC) OPERATION AND MAINTENANCE OF GASEOUS HYDROGEN SYSTEMS <\/td>\n<\/tr>\n
392<\/td>\nSECTION 708 (IFGC) DESIGN OF LIQUEFIED HYDROGEN SYSTEMS ASSOCIATED WITH HYDROGEN VAPORIZATION OPERATIONS
BIBLIOGRAPHY <\/td>\n<\/tr>\n
394<\/td>\nCHAPTER 8: REFERENCED STANDARDS
GENERAL COMMENTS
PURPOSE <\/td>\n<\/tr>\n
395<\/td>\nCOMMENTARY FIGURE 800 REFERENCED STANDARDS <\/td>\n<\/tr>\n
396<\/td>\nANSI <\/td>\n<\/tr>\n
397<\/td>\nASME <\/td>\n<\/tr>\n
398<\/td>\nASTM <\/td>\n<\/tr>\n
399<\/td>\nCGA
CSA
DOTn
ICC <\/td>\n<\/tr>\n
400<\/td>\nMSS
NFPA
UL <\/td>\n<\/tr>\n
402<\/td>\nAPPENDIX A (IFGS): SIZING AND CAPACITIES OF GAS PIPING
A.1 GENERAL PIPING CONSIDERATIONS
A.2 DESCRIPTION OF TABLES <\/td>\n<\/tr>\n
403<\/td>\nTABLE A.2.2 EQUIVALENT LENGTHS OF PIPE FITTINGS AND VALVES <\/td>\n<\/tr>\n
404<\/td>\nTABLE A.2.2\u2014continued EQUIVALENT LENGTHS OF PIPE FITTINGS AND VALVES <\/td>\n<\/tr>\n
405<\/td>\nTABLE A.2.4 MULTIPLIERS TO BE USED WITH TABLES 402.4(1) THROUGH 402.4(22) WHERE THE SPECIFIC GRAVITY OF THE GAS IS OTHER THAN 0.60
A.3 USE OF CAPACITY TABLES <\/td>\n<\/tr>\n
407<\/td>\nTABLE A.3.4 THOUSANDS OF BTU\/H (MBH) OF NATURAL GAS PER 100 FEET OF PIPE AT VARIOUS PRESSURE DROPS AND PIPE DIAMETERS
A.4 USE OF SIZING EQUATIONS <\/td>\n<\/tr>\n
408<\/td>\nA.5 PIPE AND TUBE DIAMETERS
TABLE A.5.1 SCHEDULE 40 STEEL PIPE STANDARD SIZES
A.6 EXAMPLES OF PIPING SYSTEM DESIGN AND SIZING
FIGURE A.6.1 PIPING PLAN SHOWING A STEEL PIPING SYSTEM <\/td>\n<\/tr>\n
409<\/td>\nTABLE A.5.2 COPPER TUBE STANDARD SIZES
FIGURE A.6.2 PIPING PLAN SHOWING A CSST SYSTEM <\/td>\n<\/tr>\n
410<\/td>\nFIGURE A.6.3 PIPING PLAN SHOWING A COPPER TUBING SYSTEM
FIGURE A.6.4 PIPING PLAN SHOWING A MODIFICATION TO EXISTING PIPING SYSTEM <\/td>\n<\/tr>\n
412<\/td>\nAPPENDIX B (IFGS) SIZING OF VENTING SYSTEMS SERVING APPLIANCES EQUIPPED WITH DRAFT HOODS, CATEGORY I APPLIANCES AND APPLIANCES LISTED FOR USE WITH TYPE B VENTS
EXAMPLES USING SINGLE APPLIANCE VENTING TABLES
FIGURE B-1 TYPE B DOUBLE-WALL VENT SYSTEM SERVING A SINGLE APPLIANCE WITH A TYPE B DOUBLE-WALL VENT <\/td>\n<\/tr>\n
413<\/td>\nFIGURE B-2 TYPE B DOUBLE-WALL VENT SYSTEM SERVING A SINGLE APPLIANCE WITH A SINGLE-WALL METAL VENT CONNECTOR
FIGURE B-3 VENT SYSTEM SERVING A SINGLE APPLIANCE WITH A MASONRY CHIMNEY OF TYPE B DOUBLE-WALL VENT CONNECTOR
FIGURE B-4 VENT SYSTEM SERVING A SINGLE APPLIANCE USING A MASONRY CHIMNEY AND A SINGLE-WALL METAL VENT CONNECTOR
FIGURE B-5 ASBESTOS CEMENT TYPE B OR SINGLE-WALL METAL VENT SYSTEM SERVING A SINGLE DRAFT-HOOD-EQUIPPED APPLIANCE <\/td>\n<\/tr>\n
414<\/td>\nFIGURE B-6 VENT SYSTEM SERVING TWO OR MORE APPLIANCES WITH TYPE B DOUBLE-WALL VENT AND TYPE B DOUBLE-WALL VENT CONNECTOR
FIGURE B-7 VENT SYSTEM SERVING TWO OR MORE APPLIANCES WITH TYPE B DOUBLE-WALL VENT AND SINGLE-WALL METAL VENT CONNECTORS
FIGURE B-8 MASONRY CHIMNEY SERVING TWO OR MORE APPLIANCES WITH TYPE B DOUBLE-WALL VENT CONNECTOR
FIGURE B-9 MASONRY CHIMNEY SERVING TWO OR MORE APPLIANCES WITH SINGLE-WALL METAL VENT CONNECTORS <\/td>\n<\/tr>\n
415<\/td>\nFIGURE B-10 ASBESTOS CEMENT TYPE B OR SINGLE-WALL METAL VENT SYSTEM SERVING TWO OR MORE DRAFT-HOOD-EQUIPPED APPLIANCES
FIGURE B-11 USE OF MANIFOLD COMMON VENT CONNECTOR
FIGURE B-12 USE OF OFFSET COMMON VENT
FIGURE B-13 MULTISTORY GAS VENT DESIGN PROCEDURE FOR EACH SEGMENT OF SYSTEM <\/td>\n<\/tr>\n
416<\/td>\nFIGURE B-14 MULTISTORY VENT SYSTEMS
FIGURE B-15 (EXAMPLE 1) SINGLE DRAFT-HOOD-EQUIPPED APPLIANCE <\/td>\n<\/tr>\n
417<\/td>\nFIGURE B-16 (EXAMPLE 2) SINGLE FAN-ASSISTED APPLIANCE <\/td>\n<\/tr>\n
418<\/td>\nEXAMPLES USING COMMON VENTING TABLES
FIGURE B-17 (EXAMPLE 4) COMMON VENTING TWO DRAFT-HOOD-EQUIPPED APPLIANCES
FIGURE B-18 (EXAMPLE 5A) COMMON VENTING A DRAFT HOOD WITH A FAN-ASSISTED FURNACE INTO A TYPE B DOUBLE-WALL COMMON VENT <\/td>\n<\/tr>\n
420<\/td>\nTABLE B-1 MASONRY CHIMNEY LINER DIMENSIONS WITH CIRCULAR EQUIVALENTSa <\/td>\n<\/tr>\n
421<\/td>\nFIGURE B-19 <\/td>\n<\/tr>\n
422<\/td>\nAPPENDIX C (IFGS) EXIT TERMINALS OF MECHANICAL DRAFT AND DIRECT-VENT VENTING SYSTEMS
APPENDIX C EXIT TERMINALS OF MECHANICAL DRAFT AND DIRECT-VENT VENTING SYSTEMS <\/td>\n<\/tr>\n
424<\/td>\nAPPENDIX D (IFGS) RECOMMENDED PROCEDURE FOR SAFETY INSPECTION OF AN EXISTING APPLIANCE INSTALLATION
D.1 GENERAL
D.2 OCCUPANT AND INSPECTOR SAFETY <\/td>\n<\/tr>\n
425<\/td>\nD.3 GAS PIPING AND CONNECTION INSPECTIONS
D.4 INSPECTIONS TO BE PERFORMED WITH THE APPLIANCE NOT OPERATING <\/td>\n<\/tr>\n
426<\/td>\nD.5 INSPECTIONS TO BE PERFORMED WITH THE APPLIANCE OPERATING <\/td>\n<\/tr>\n
427<\/td>\nD.6 APPLIANCE-SPECIFIC INSPECTIONS <\/td>\n<\/tr>\n
428<\/td>\nTABLE D.6 CO THRESHOLDS <\/td>\n<\/tr>\n
430<\/td>\nINDEX <\/td>\n<\/tr>\n
434<\/td>\nICC EVALUATION SERVICE <\/td>\n<\/tr>\n
435<\/td>\nICC premiumACCESS <\/td>\n<\/tr>\n
436<\/td>\nICC LEARNING CENTER <\/td>\n<\/tr>\n
437<\/td>\nICC ASSESSMENT CENTER <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

International Fuel Gas Code and Commentary<\/b><\/p>\n\n\n\n\n
Published By<\/td>\nPublication Date<\/td>\nNumber of Pages<\/td>\n<\/tr>\n
ICC<\/b><\/a><\/td>\n2018<\/td>\n437<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":191272,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[2670],"product_tag":[],"class_list":{"0":"post-191270","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-icc","8":"first","9":"instock","10":"sold-individually","11":"shipping-taxable","12":"purchasable","13":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product\/191270","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media\/191272"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=191270"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=191270"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=191270"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}