United States (inches)
Model
A
B
C
D
BH-40
-
-
-
-
BH-60
8
8
59
42
BH-80
8
8
65
46
BH-100
8
8
73
52
BH-125
8
8
77
61
BH-150
8
8
83
66
BH-175
8
8
85
70
BH-200
8
8
85
70
United States (inches)
Model
A
B C
D
BH-40
6
27
52
27
BH-60
6
35
62
35
BH-80
6
38
65
38
BH-100
6
40
70
40
BH-125
6
46
76
46
BH-150
6
50
79
50
BH-175
8
52
82
52
BH-200 8
52
82
52
United States (inches)
Model
A
E
F
BH-40
14
18
18
BH-60
14
18
18
BH-80
20
24
18
BH-100
20
24
18
BH-125
20
24
18
BH-150
20
30
18
BH-175
20
30
18
BH-200 20
30
18
Canada (inches)
Model
A
B
C
D
BH-40
-
-
-
-
BH-60
7
7
47
36
BH-80
7
7
53
44
BH-100
7
7
60
49
BH-125
7
7
64
55
BH-150
7
7
67
58
BH-175
7
9
71
63
BH-200 7
7
71
63
Canada (inches)
Model
A
B
C
D
BH-40
6
23
50
23
BH-60
6
27
53
27
BH-80
6
30
59
30
BH-100
6
33
64
33
BH-125
6
35
66
35
BH-150
6
39
71
39
BH-175
8
43
75
43
BH-200 8
43
75
43
Canada (inches)
Model
A
E
F
BH-40
14
18
18
BH-60
14
18
18
BH-80
14
24
18
BH-100
20
24
18
BH-125
20
24
18
BH-150
20
30
18
BH-175
20
30
18
BH-200 20
30
18
Canada - Metric (cm)
Model
A
B
C
D
BH-40
-
-
-
-
BH-60
18
18
119
91
BH-80
18
18
135
112
BH-100
18
18
152
124
BH-125
18
18
163
140
BH-150
18
18
170
147
BH-175
18
18
180
160
BH-200 18
18
180
160
Canada - Metric (cm)
Model
A
B
C
D
BH-40
15
58
127
58
BH-60
15
69
135
69
BH-80
15
76
150
76
BH-100
15
84
163
84
BH-125
15
89
168
89
BH-150
15
99
180
99
BH-175
20
109 191
109
BH-200 20
109 191
109
Canada - Metric (cm)
Model
A
E
F
BH-40
36
46
46
BH-60
36
46
46
BH-80
51
61
46
BH-100
51
61
46
BH-125
51
61
46
BH-150
51
76
46
BH-175
51
76
46
BH-200 51
76
46
15
ROBERTS
-
GORDON
A
B
C
D
Radiant tubes
Vent
Pipes
Unvented
Vented
A
E
F
C
D
B
A
NOTE: 1. All dimensions are from the tube surface.
2. Clearances B, C and D can be reduced by 50% after 25’ (7 m) of tubing
downstream from where the burner and transition tube connect.
3. For Brooder Clearances, use United States clearances.
U-TUBE, FULL, 45°
2 FOOT DECO GRILLE
VENTING
Clearances to Combustibles
FIGURE 15.
FIGURE 16.
FIGURE 17.
