Roberts Gorden BH35ST/EF User Manual
SECTION 3: C
LEARANCES
TO
C
OMBUSTIBLES
7 of 75
NOTE:
1. All dimensions are from the surfaces of all tubes, couplings, tees, elbows and crosses.
2. Clearances B, C and D can be reduced by 50% after 7500 mm of tubing downstream
from the burner.
3. All measurements are in millimeters.
** When installed in the first 6 m - Not for use on EF models.
* BH55ST only available in multiburner.
FIGURE 7: LINEAR & DOUBLE LINEAR, 2 FOOT DECO GRILLE
Mo
del
BH1
5S
T
BH30DL
BH20S
T
BH40DL
BH25S
T
/EF
BH50DL/EF
BH30S
T
/EF
BH60DL/EF
BH35S
T
/EF
BH70DL/EF
BH40S
T
/EF
BH45S
T
/EF
BH50S
T
/EF
& BH
55S
T
*
A
150
150
150
150
150
150
200
200
B
890
970
970
1020
1170
1220
1280
1330
C
1570
1650
1650
1780
1930
1970
2010
2080
D
890
970
970
1020
1170
1220
1280
1330
A
C
D
B
FIGURE 8: LINEAR & DOUBLE LINEAR, PROTECTIVE GRILLE
Mode
l
BH15ST
BH30DL
BH20ST
BH40DL
BH25ST/EF
BH50DL/EF
BH30ST/EF
BH60DL/EF
BH35ST/EF
BH70DL/EF
BH40ST/EF
BH45ST/EF
BH50ST/EF
& BH55ST*
A
150
150
150
150
150
150
200
200
B
890
970
970
1020
1170
1220
1280
1330
C
1570
1650
1650
1780
1930
1970
2010
2080
D
890
970
970
1020
1170
1220
1280
1330
A
C
D
B
FIGURE 9: UNDERSHIELD **
Model
BH
1
5
S
T
BH
3
0
D
L
BH
2
0
S
T
BH
4
0
D
L
BH
2
5
S
T
/EF
BH
5
0
D
L
/EF
BH
3
0
S
T
/EF
BH
6
0
D
L
/EF
BH
3
5
S
T
/EF
BH
7
0
D
L
/EF
BH
4
0
S
T
/EF
BH
4
5
S
T
/EF
BH
5
0
S
T
/EF
& BH55ST*
A
150
150
150
150
150
150
-
-
B
990
1020
1270
1270
1370
1400
-
-
C
840
965
1120
1120
1220
1270
-
-
D
990
1020
1270
1270
1370
1400
-
-
A
C
D
B
FIGURE 10: LINEAR & DOUBLE LINEAR, VENTING
Model
BH
15S
T
BH
30D
L
BH
20S
T
BH
40D
L
BH
25S
T/E
F
BH
50D
L/E
F
BH
30S
T/E
F
BH
60D
L/E
F
BH
35S
T/E
F
BH
70D
L/E
F
BH
40S
T/E
F
BH
45S
T/E
F
BH
50S
T/E
F
& BH55ST*
E
1000
1000
1000
1000
1000
1000
1000
1000
F
500
500
500
500
500
500
500
500
Radiant tubes
Fan
Unvented
Vented
E
F