Page 116 - 2018_IFGC
P. 116
CHIMNEYS AND VENTS
NAT Max Max 855 1,548 700 1,072 688 1,055 668 1,028 648 1,002 628 977 594 929 952 1,730 813 1,276 798 1,259 773 1,230 747 1,203 722 1,176 670 1,125 1,040 1,908 935 1,536 926 1,519 910 1,492 895 1,465 880 1,438 849 1,387 787 1,288
Connected directly to vent 9 FAN Min 0 42 82 107 124 139 171 0 33 77 101 117 131 161 0 25 71 94 109 122 149 217
Single Category I NAT Max Max 650 1,173 535 826 524 811 507 788 490 765 473 743 444 702 708 1,297 615 975 605 960 589 935 572 911 556 888 522 844 770 1,411 700 1,155 692 1,141 679 1,118 666 1,095 653 1,073 627 1,029 575 944
Number of Appliances Appliance Type Appliance Vent Connection 8 FAN NAT Min Max Max 0 475 853 33 394 613 69 385 600 91 371 580 105 357 560 119 343 542 149 321 507 0 518 932 26 445 715 65 438 702 86 426 681 100 413 662 113 401 642 141 376 605 0 560 997 21 510 831 60 504 820 80 493 801 93 482 782 105 471 763 131 449 726 197 405 651
VENT DIAMETER—(D) inches 7 APPLIANCE INPUT RATING IN THOUSANDS OF BTU/H FAN NAT FAN Min Max Max 0 336 587 27 280 432 58 273 421 77 261 405 90 249 389 102 237 374 131 219 346 0 363 633 22 314 497 55 308 487 73 298 471 85 288 455 97 278 440 123 259 410 0 400 665 18 375 566 52 369 557 68 361 542 80 353 528 90 344 513 115 NA 483 180 NA 428
NAT Min Max 0 220 18 185 45 176 59 171 70 163 80 154 104 NA 0 232 15 206 43 200 56 190 66 180 76 169 99 NA 0 NA 13 NA 40 NA 53 NA 62 NA 71 NA 92 NA 147 NA (continued)
Max 374 283 275 262 249 237 214 397 320 312 299 287 275 250 407 354 347 335 321 311 290 NA
6
FAN
Min 0 14 36 48 57 66 88 0 14 35 45 54 63 84 0 12 33 43 50 59 78 NA
NAT Max Max 128 213 112 166 108 160 102 150 96 141 90 132 NA 113 134 216 122 183 119 177 114 168 NA 158 NA 149 NA 131 NA 218 NA 194 NA 189 NA 182 NA 174 NA 166 NA NA NA NA
TABLE 504.2(1)—continued TYPE B DOUBLE-WALL GAS VENT 4 FAN NAT FAN Min Max Max 0 64 100 13 56 81 28 54 77 37 50 70 44 NA 64 53 NA 58 73 NA NA 0 67 101 11 61 86 27 NA 82 35 NA 76 42 NA 70 50 NA NA 69 NA NA 0 NA NA 10 NA NA 26 NA NA 33 NA NA 40 NA NA 47 NA NA NA NA NA NA NA NA
5
LATERAL (L) Min (feet) 0 0 9 2 21 5 27 10 33 15 56 20 NA 30 0 0 8 2 20 5 26 10 59 15 NA 20 NA 30 NA 0 NA 2 NA 5 NA 10 NA 15 NA 20 NA 30 NA 50
3
HEIGHT (H) (feet) 30 50 100
2018 INTERNATIONAL FUEL GAS CODE ® 103
Copyrighted © 2017 by, or licensed to, ICC (ALL RIGHTS RESERVED); licensed to UL, LLC pursuant to License Agreement with ICC. No further reproductions authorized or distribution authorized.
ANY UNAUTHROIZED REPRODUCTION OR DISTRIBUTION IS A VIOLATION OF THE FEDERAL COPYRIGHT ACT AND THE LICENSE AGREEMENT; AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER.
