Ratings

Series 4N RATINGS
©2012 Burnham Commercial
P.O. Box 3939 • Lancaster, PA 17604
Phone: [phone] • Fax: [phone]
www.burnhamcommercial.com
Form No. PL81465521006-12/12-1Mc
Printed in the U.S.A.
4N BOILER MODELS 63 78 92 107 127 154 180 209 240 277 311 345
Net Rating - Steam or Water MBH
Net Rating - Steam Sq. Ft.
Net Rating - Water Sq. Ft.
158
660
1,055
192
800
1,280
225
935
1,500
259
1,080
1,725
337
1,405
2,245
404
1,685
2,695
468
1,950
3,120
538
2,240
3,590
649
2,700
4,330
744
3,100
4,960
831
3,460
5,540
922
3,840
6,150
Heating Surface - Sq. Ft. Fireside
Waterside
45
47
55
57
64
67
74
77
96
100
115
120
133
139
153
160
183
193
210
221
235
247
260
274
Grate Area Sq. Ft. 4.0 5.1 6.1 7.2 7.2 8.8 10.3 12.0 12.6 12.6 13.4 14.5
Furnace Volume Cu. Ft. 8.8 10.7 12.6 14.6 18.3 21.9 25.3 29.1 34.7 39.7 44.4 49.1
Heat Release MBH/Cu. Ft. 39.9 40.1 39.2 39.2 40.5 41.0 41.1 42.9 41.2 41.3 41.0 41.0
Water Content - Gals. Steam
Water
67
92
83
114
96
134
113
156
133
168
149
200
171
231
197
267
209
283
239
323
267
362
295
401
Approx. Dry Weight - Lbs. 1,900 2,200 2,500 2,900 3,200 3,700 4,100 4,600 5,150 5,550 6,250 6,650
Approx. Full Weight - Lbs. Steam
Water
2,455
2,665
2,900
3,160
3,310
3,630
3,860
4,220
4,325
4,615
4,920
5,905
5,555
6,055
6,240
6,820
6,895
7,510
7,545
8,245
8,460
9,250
9,100
9,985
4N BOILER MODELS 397 463 563 662 827 993 1157 1323 1654 1985 2315 2645
Net Rating - Steam or Water MBH
Net Rating - Steam Sq. Ft.
Net Rating - Water Sq. Ft.
1,408
5,865
9,391
1,724
7,185
11,500
2,188
9,115
14,595
2,572
10,715
17,155
3,214
13,390
21,435
3,859
16,080
25,740
4,496
18,730
29,990
5,141
21,420
34,290
6,427
26,780
42,870
7,713
32,135
51,445
8,996
37,485
60,005
10,278
42,825
68,555
Heating Surface - Sq. Ft. Fireside
Waterside
397
429
463
50
563
608
662
715
827
893
993
1,072
1,157
1,250
1,323
1,429
1,654
1,786
1,985
2,143
2,315
2,500
2,645
2,857
Grate Area Sq. Ft. 16.4 18.1 20.5 22.5 25.6 28.4 30.9 33.2 37.4 41.2 44.7 48.0
Furnace Volume Cu. Ft. 58.9 68.0 89.3 104.7 115.6 139.2 160.7 186.5 234.0 301.6 348.6 383.8
Heat Release MBH/Cu. Ft. 52.3 53.0 49.1 49.2 55.6 55.5 56.0 55.1 55.0 51.2 51.6 53.6
Water Content - Gals. Steam
Water
421
520
492
607
602
740
712
875
761
1,003
925
1,220
1,050
1,330
1,227
1,554
1,443
1,826
1,720
2,147
1,979
2,473
2,173
2,718
Approx. Dry Weight - Lbs. 8,150 9,800 10,550 12,350 14,850 16,150 19,700 21,900 25,450 30,600 37,250 42,300
Approx. Full Weight - Lbs. Steam
Water
11,645
12,470
13,910
14,865
15,565
16,715
18,280
19,640
21,190
23,200
23,845
26,295
28,480
30,715
32,132
34,860
37,450
40,640
44,935
48,490
53,740
57,855
60,400
64,920
Grates for hand ring are not supplied by Burnham Commercial.
Select boiler on net rating to match building heat loss or installed radiation.
• Compact, ecient three-pass rebox design • 15 psi steam, 30 psi water
• Applications ring solid fuel, gas or oil • Ample rebox assures non-critical
combustion, high eciency
RATINGS FOR HAND FIRING