Installation
2-2
750-297
Profire E/LNE Series Manual
2.3 — Combustion Chamber Recommendations and E Refractory Dimensions
The combustion chamber dimensions should be proportioned to the heating load of the boiler.
2.3.1 - Watertube Boiler Dimensions
*
Dimension is for oil applications. Dimension will be less for gas only applications.
Burner
Size
A
B
C
D
E
F
G
Combustion
Chamber
Min. Width
Combustion
Chamber Min.
Length
84
10
19
19
31.5*
64
3.5
23
38
74
105
10
19
23
31.5*
64
3.5
23
46
84
126
10
19
24
31.5*
64
3.5
23
50
90
147
12
22
25
31.5*
64
3.5
23
55
100
168
12
27.5
27
37*
78
3.5
31
60
108
210
12
27.5
30
37*
78
3.5
31
70
120
252
15
31.5
30
37*
78
3.5
31
84
132
294
15
31.5
32
42*
87
3.5
33
84
144
336
18
34.6
34
42*
87
3.5
33
86
152
378
18
34.6
36
42*
87
3.5
33
92
160
420
18
34.6
38
42*
87
3.5
33
96
170
FIGURE 2-1.
Combustion Chamber Dimensions (Watertube Boiler)
BLOCK INSULATION
45°
B
C (MIN)
A
CL
BURNER
STANDARD
FIREBRICK
FLOOR
E
D
1-1/2" + A
G
F
