Page 120 - 2018_IFGC
P. 120
CHIMNEYS AND VENTS
NAT Max 1,545 1,308 1,283 1,234 1,205 1,166 1,101 1,818 1,509 1,490 1,455 1,421 1,387 1,318 2,042 1,817 1,796 1,763 1,730 1,696 1,627 1,489
Max 2,996 1,999 1,971 1,927 1,884 1,841 1.759 3,432 2,426 2,396 2,347 2,299 2,251 2,159 3,912 3,021 2,990 2,938 2,888 2,838 2,739 2,547
Single-wall metal connector 2 1 NAT Mln Max 454 1,056 424 863 524 846 620 821 702 794 780 768 937 720 428 1,189 401 1,007 496 991 589 963 668 934 741 906 892 848 395 1,300 371 1,168 460 1,153 547 1,133 618 1,110 690 1,087 834 1,041 1,138 NA
FAN
Single Category I 0 1 FAN Max Mln 1.971 312 1,346 296 1,324 366 1,287 440 1,251 507 1,216 570 1,147 704 2,223 295 1,615 280 1,591 347 1,551 418 1,512 481 1,473 544 1,399 674 2,479 273 1,970 259 1,945 322 1.905 389 1,865 447 1,825 507 1,747 631 1,591 895
Number of Appliances Appliance Type Appliance Vent Connection NAT FAN Max Max 852 1,542 698 1,069 684 1,049 662 1,017 638 985 615 955 574 895 948 1,724 811 1,273 795 1,252 765 1,217 736 1,183 708 1,150 649 1,086 1,033 1,900 933 1,532 921 1,511 902 1,477 884 1,443 864 1,410 824 1,343 NA 1,205
NAT FAN Mln Max Max 229 647 1,168 219 533 823 269 521 806 327 501 777 379 481 750 433 461 723 541 426 670 220 704 1,292 209 613 971 257 602 953 313 583 923 363 562 894 415 543 866 521 502 809 207 765 1,404 196 698 1,152 240 688 1,134 293 672 1,104 342 656 1,075 391 639 1,046 491 NA 988 711 NA 866
9
VENT DIAMETER—(D) inches 8 APPLIANCE INPUT RATING IN THOUSANDS OF BTU/H NAT FAN Mln Max Max 184 472 849 175 392 610 215 382 595 265 367 570 312 349 547 360 333 524 461 305 477 176 515 928 168 443 712 204 435 696 253 420 671 299 405 646 345 389 622 442 NA 573 166 555 991 158 508 828 194 501 813 238 486 789 281 473 764 325 458 739 418 NA 685 617 NA 584
NAT Mln Max 144 334 139 279 171 271 213 257 255 242 298 228 389 NA 138 361 133 312 164 305 203 292 244 280 285 267 373 NA 131 395 125 373 156 366 191 354 230 343 270 NA 355 NA 540 NA
Max 584 429 417 397 377 357 NA 629 495 482 461 441 420 376 659 563 551 532 511 487 448 NA
7
FAN NAT Mln Max 110 219 109 183 136 173 171 168 208 157 246 NA NA NA 105 230 104 205 131 198 162 186 199 174 236 NA 315 NA 100 NA 98 NA 125 NA 153 NA 188 NA 224 NA 301 NA NA NA
TABLE 504.2(2)—continued TYPE B DOUBLE-WALL GAS VENT 5 FAN NAT Max Mln Max Max 372 76 127 211 281 76 111 164 271 98 106 157 255 122 98 144 239 151 NA 131 223 181 NA NA NA NA NA NA 394 73 133 213 318 73 121 181 308 94 117 174 292 118 NA 160 275 145 NA 148 257 176 NA NA NA NA NA NA 403 69 NA 214 351 70 NA 192 342 90 NA 186 324 113 NA 175 310 138 NA 162 295 168 NA NA 264 231 NA NA NA
6
NAT FAN Mln Max 53 63 55 56 72 52 91 NA 115 NA NA NA NA NA 51 66 53 61 70 NA 89 NA 112 NA NA NA NA NA 49 NA 51 NA 67 NA 85 NA 132 NA NA NA NA NA NA NA 1 inch = 25.4 mm, 1 foot = 304.8 mm, 1 British thermal unit per hour = 0.2931 W.
Max 99 80 74 NA NA NA NA 99 84 80 NA NA NA NA NA NA NA NA NA NA NA NA
4
FAN
Mln 34 37 49 NA NA NA NA 33 36 48 NA NA NA NA NA NA NA NA NA NA NA NA
LATERAL (L) (feet) 0 2 5 10 15 20 30 0 2 5 10 15 20 30 0 2 5 10 15 20 30 50
3
HEIGHT (H) (feet) 30 50 100 For SI:
2018 INTERNATIONAL FUEL GAS CODE ® 107
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