SPECIFICATIONS
Table1. Fire Pit Dimensions
A
B
C
.875 TYP. (usable flat lip)
*
*
D
Ground Level (Earth)
Figure 1. Fire Pit Dimensions; refer to Table 1.
(Dimensions applicable to round or square pans)
I-MT REV. 7-23-15 Page 3
Model:
MT Natural Gas (NG)
NG Factory
Orifice
BTU’s
Natural
FPB-25RBS22MT-N
#22
100,000
FPB-29RBS22MT-N
#22
100,000
FPB-33RBS31MT-N
#08
160,000
FPB-19RBS16MT-N
#31
60,000
FPB-25RBS22MT-N
#22
100,000
FPB-20SBS16MT-N
#31
60,000
FPB-26SBS22MT-N
#22
100,000
FPB-32SBS31MT-N
#08
160,000
FPB-38SBS36MT-N
#03
183,000
Table 2. Btu Specifications
Pressure
NG
LP
Min. Inlet
3.5” WC
8.0” WC
Max. Inlet
10.5” WC 13.0” WC
Normal Inlet 7.0” WC
11.0” WC
Table 3. Gas Pressures
Model:
Natural Gas (NG)
A
Pan
Depth
B
Min./Max.
Install Opening
C
Inside
Pa
n
D
Ground
Level
E
Side
Wall
F
Combustible
Ceiling
G
Combustible
Floor
FPB-25RBS22MT-N
2.500”
25.25”/27.5”
23.875”
8”
36”
96”
18”
FPB-29RBS22MT-N
2.500”
30”/31.35”
29”
8”
36”
96”
18”
FPB-33RBS31MT-N
2.500”
34”/35.25”
33”
8”
36”
96”
18”
FPB-19RBS16MT-N
2.750”
19.25/21.5”
19”
8”
36”
96”
18”
FPB-25RBS22MT-N
2.750”
25.25”/27.5”
25”
8”
36”
96”
18”
FPB-20SBS16MT-N
2.750”
20.25”/21.75”
20”
8”
36”
96”
18”
FPB-26SBS22MT-N
2.750”
26.25”/27.75”
26”
8”
36”
96”
18”
FPB-32SBS31MT-N
2.750”
32.25”/33.75”
32”
8”
36”
96”
18”
FPB-38SBS36MT-N
2.750”
38.25”/39.75”
38”
8”
36”
96”
18”
Disclaimer:
Btu listings are based on 7.0”WC for Natural Gas and 11.0”WC
for Liquid Propane (LP) at the burner orifice. Flex line size and proper gas
pipe sizing will also affect Btu’s. As a result your Btu’s may vary slightly from
Table 2 specifications.
MT Burning Spur Fire Pits
Figure 2. Clearance to Combustibles
(Not to be used in an enclosed space)
F
E
G
