Burnham 4NL-W Coal Ratings
Contents
1. Grate Area Ssa FE 14 5 Furnace Volume Cu Ft 49 1 Heat Release MBH Cu Ft 41 0 Water Content Gals Steam 295 Water 401 Approx Dry Weight Lbs 6 650 Approx Full Weight Lbs Steam 9 100 Water 9 985 aN BOILER MODELS 2645 Net Rating Steam or Water MBH 1 724 2 188 2 572 3 214 3 859 4496 5 141 6 427 7 713 8 996 10 278 Net Rating Steam Sq Ft 7 185 9 115 10 715 13 390 16 080 18 730 21 420 26 780 32 135 37 485 42 825 Net Rating Water Sq Ft 11 500 14 595 17 155 21 435 25 740 29 990 34290 42 870 51 445 60 005 68 555 Heating Surface Sq Ft Fireside 563 662 827 993 1 157 1323 1 654 1 985 2 315 2 645 Waterside 608 715 893 1 072 1 250 1 429 1 786 2 143 2 500 2 857 Grate Area Sq Ft 20 5 22 5 25 6 28 4 30 9 332 37A 41 2 44 7 48 0 Furnace Volume Cu Ft i 89 3 139 2 234 0 301 6 383 8 Heat Release MBH Cu Ft 49 1 55 5 s 55 0 52 53 6 Water Content Gals Steam 2 173 Water 2 718 Approx Dry Weight Lbs 42 300 Approx Full Weight Lbs Steam 60 400 Water 64 920 Grates for hand firing are not supplied by Burnham Commercial Select boiler on net rating to match building heat loss or installed radiation 2012 Burnham Commercial BURNHAM P 0 Box 3939 Lancaster PA 17604 T Phone 888 791 3790 Fax 717 293 5803 f Form No PL81465521006 12 12 1Mc www burnhamcommercial com Printed in the USA Commercial Boilers2. Heating Surface Sq Ft Fireside 662 827 993 1 157 1 323 1 654 1 985 2 315 2 645 3 075 Waterside 500 608 715 893 1 072 1 250 1 429 1 786 2 143 2 500 2 857 3 321 Furnace Volume Cu Ft 68 0 89 3 104 7 115 6 139 2 160 7 186 5 234 0 301 6 3486 383 8 505 6 Heat Release MBH Cu Ft 46 3 42 9 43 0 48 7 48 5 49 0 48 2 48 1 44 8 45 2 46 9 41 4 Water Content Gals Steam 492 602 712 761 925 1 050 1 227 1 4 1 720 1 979 2 173 2 814 Water 607 740 875 1 003 1 220 1 330 1 554 1 826 2 147 2 473 2 718 3 665 Approx Dry Weight Lbs 8 000 8500 10 100 12 300 13 300 16 600 18 600 21 700 26 500 32 800 37 500 48 200 Approx Weight Full Lbs Steam 12 100 13 515 16 030 18 630 21 005 25 340 28 815 33 710 40 815 49 270 55 590 71 630 Water 13 055 14 665 17 390 20 645 23 455 27 675 31 540 36 900 44 370 53 385 60 120 78 710 All models have 3 inch diameter tubes except 3075 has 2 1 2 inch tubes does not include base volume Series 4N ratinas e Compact efficient three pass firebox design e 15 psi steam 30 psi water e Applications firing solid fuel gas or oil e Ample firebox assures non critical combustion high efficiency RATINGS FOR HAND FIRING aN BOILER MODELS 35 Net Rating Steam or Water MBH D Net Rating Steam Sq Ft 3 840 Net Rating Water Sq Ft 6 150 Heating Surface Sq Ft Fireside 260 Waterside 274
3. Series 4N NATURAL DRAFT FIREBOX BOILER RATINGS FOR OIL GAS OR STOKER FIRING AN BOILER MODEL sas 397 Gross Output MBH 21 60 BHP 65 Lbs Stm Hr 2 226 Net Rating Steam MBH 1 667 Sq Ft 6 990 Net Rating Water MBH 1 878 Firing Rate Gas MBH 2 00 Light Oil 140 000 BTU Gal 19 3 Heavy Oil 150 000 BTU Gal 18 0 Coal Stoker Lbs Hr 222 Heating Surface Sq Ft Fireside 397 Waterside 429 Furnace Volume Cu Ft 58 9 Heat Release MBH Cu Ft 45 8 Water Content Gals Steam 421 Water 520 Approx Dry Weight Lbs 6 500 Approx Weight Full Lbs Steam 10 005 Water 10 830 Gross Output MBH 3 601 4 499 5 402 6 294 7 197 8 998 10 798 14 389 16 738 BHP 108 134 161 188 215 269 323 430 500 Lbs Stm Hr 3 712 4 636 5 567 6 484 7 417 9 273 11 129 14 829 17 250 Net Rating Steam MBH 2 796 3 493 4 194 4 887 5 588 6 986 8 384 11 172 12 989 Sq Ft 11 650 14 555 17 475 20 360 23 280 29 110 34 930 40 740 46 550 54 120 Net Rating Water MBH 3 131 3 912 4 697 5 473 6 258 7 824 9 390 10 951 12 512 14 554 Firing Rate Gas MBH 4501 5 624 6 753 7 868 8 996 11 248 13 498 15 743 17 986 20 923 Light Oil 140 000 BTU Gal 32 1 40 2 48 2 56 2 64 3 80 3 96 4 112 5 128 5 149 5 Heavy Oil 150 000 BTU Gal 30 0 37 5 45 0 52 5 60 0 75 0 90 0 104 9 120 0 139 5 Coal Stoker Lbs Hr 369 461 554 646 738 923 1 108 1 292 1 476 1 717
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