Burnham 4N Boiler Dimension Guide

Series 4N — Models 63 - 662
Dimensions
4N Boiler Models 63 78 92 107 127 154 180 209 240 277 311 345 397 463 563 662
A - Boiler Width
B - Boiler Length
C - Boiler Height
D - Base Width
E - Base Length
*F - Base Height
G - Front Smoke Box Height
H - Front Smoke Box Depth
J - Supply Location
**K - Supply Size
L - Return Size
M - Return Location
N - Smoke Box Depth - Top Rear
P - Vent Collar Diameter
Q - Rear Vent Collar Height
R - Smoke Box Collar Width Top Vent
S - Smoke Box Collar Depth Top Vent
T - Top Vent Collar Height
U - Tube Pull Space
V - Supply Fitting Height
W - Normal Water Line Height
*Oil, Gas, Stoker Only - See note below rating table for hand-fired boilers. **4” is IPS female thread, 6” and larger are flanged
Specifications, dimensions data subject to change without notice.
30 37 43-1/2 50-1/2 42-1/2 51 59 68 55 63 70-1/2 78 76-3/4 89-1/4 100-3/8 118-1/4
30-1/2 37-1/2 44 51 43 51-1/2 59-1/2 68-1/2 55-1/2 63-1/2 71 78-1/2 78-1/8 90-5/8 101-3/4 119-5/8
15 15 15 15 18 18 18 18 18 18 18 18 18 18 18 18
22-3/4 22-3/4 22-3/4 22-3/4 24-7/8 24-7/8 24-7/8 24-7/8 30-5/8 30-5/8 30-5/8 30-5/8 33-5/8 33-5/8 36-3/4 36-3/4
6-1/2 6-1/2 6-1/2 6-1/2 7-1/2 7-1/2 7-1/2 7-1/2 8-1/2 8-1/2 8-1/2 8-1/4 8-1/4 8-1/4 9-3/4 9-3/4
12 12 12 12 15 15 15 15 18 18 18 18 26 26 26 26
4 4 4 4 6 6 6 6 6 8 8 8 8 10 10 10
3 3 3 3 4 4 4 4 4 4 4 4 4 4 4 4
3-1/2 3-1/2 3-1/2 3-1/2 4 4 4 4 4 4 4 4 4-3/8 4-3/8 4-3/8 4-3/8
8
16-1/2816-1/2816-1/2816-1/2920-1/2920-1/2920-1/2920-1/21022-1/21022-1/21022-1/21022-1/21616161616161616
14 14 14 14 18 18 18 18 20 20 20 20 20 24 26 28
33-7/8 33-7/8 33-7/8 33-7/8 40 40 40 40 46 46 46 46 51-1/2 51-1/2 52-3/8 52-3/8
35-1/4 35-1/4 42-1/2 42-1/2
10 13 12 13
41-7/8 41-7/8 41-7/8 41-7/8 49-1/8 49-1/8 49-1/8 49-1/8 57 57 57 57 64 64 66-7/8 66-7/8
32 39 45-1/2 52-1/2 44-1/2 53 61 70 57 65 72-1/2 80 81 94 105 23
1-5/8 1-5/8 1-5/8 1-5/8 3-3/8 3-3/8 3-3/8 3-3/8 3-3/8 3-3/8 3-3/8 3-3/8 3-1/2 3-1/2 3-5/8 3-5/8
40-3/4 40-3/4 40-3/4 40-3/4 48-1/2 48-1/2 48-1/2 48-1/2 55 55 55 55 66-3/16 66-3/16 69 69
3
Series 4N — Models 827 - 3075
The Complete Boiler Room Supplier
The Complete Boiler Room Supplier
Dimensions
4N Boiler Models 827 993 1157 1323 1654 1985 2315 2645 3075
A - Boiler Width
B - Boiler Length
*C - Boiler Height
D - Base Width
E - Base Length
F - Base Height
G - Front Smoke Box Door Height
H - Front Smoke Box Depth
J - Supply Location
**K - Supply Size
**L - Return Size - Steam
**L - Return Size - Water
M - Return Location
N - Smoke Box Depth Rear
P - Rear Vent Collar Diameter
Q - Rear Vent Collar Height
R - Top Vent Collar Width
S - Top Vent Collar Depth
T - Top Vent Collar Height
U - Tube Pull Space
W - Normal Water Line Height
*Oil, Gas, Stoker Only - See note below rating table for hand-fired boilers. **4” is IPS female thread, 6” and larger are flanged
Specifications, dimensions data subject to change without notice.
64 64 70 70 76 82 82 82 96
106-1/4 129 116-1/2 136 130-1/2 128 148 162 163
91 91 102-1/2 102-1/2 118-1/8 138-1/8 138-1/8 138-1/8 148
61-1/2 61-1/2 67-1/2 67-1/2 73-1/2 79-1/2 79-1/2 79-1/2 93-1/2
107-1/4 130 117-1/2 137 131-1/2 129 149 164 164
18 18 18 18 18 18 18 18 18
29-5/16 29-5/16 35-7/16 35-7/16 40-3/8 52-1/8 52-1/8 52-1/8 65-7/8
12-3/4 12-3/4 13-3/4 13-3/4 14-3/4 15-3/4 15-3/4 15-3/4 16-1/2
22 22 22 22 22 22 22 22 68
8 8 8 8 10 12 12 12 12
4 4 4 6 6 6 6 6 6
6 6 6 8 8 8 8 8 8
6 6 6-7/8 6-7/8 6-7/8 7-1/4 7-1/4 7-1/4 7
20-3/4 20-3/4 22-3/4 22-3/4 22-3/4 24-3/4 24-3/4 24-3/4 26
28 32 32 35 38 44 44 44 46
71-1/2 71-1/2 81-1/2 81-1/2 94-5/8 110-5/8 110-5/8 110-5/8 119
48 48 51 51 55 72 72 72 84
14 17 16 19 16 18 18 18 22
87-3/4 87-3/4 99-1/4 99-1/4 113-7/8 132-7/8 132-7/8 132-7/8 142
108 131 118-1/2 138 132-1/2 130 150 165 165
74 74 85-1/2 85-1/2 100-1/4 114-1/4 114-1/4 114-1/4 122-1/2
4
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