REV. A Page 4
Burning Spur Round and Square Fire Pits with TPSI System
TPSI SPECIFICATIONS
Table 1
Fire pit dimensions.
A
B
C
.875 TYP. (usable flat lip)
*
*
D
Ground Level (Earth)
Fig 1
. Fire pit dimensions; refer to Table 1. (Dimensions applicable to
round or square pans)
F
E
G
Fig 2
. Clearance to Combustibles
(Not to be used in an enclosed space)
Model:
Natural Gas
NG
Orifice
Model:
Propane (LP)
LP
Orifice
Propane (LP)
Btu’s
FPB-19RBS16TPSI-N OAS-NG29 FPB-19RBS16TPSI-P OAS-LP41
75,000 (21.98kW)
FPB-25RBS22TPSI-N OAS-NG16 FPB-25RBS22TPSI-P OAS-LP31
125,000 (36.63kW)
FPB-29RBS22TPSI-N OAS-NG16 FPB-29RBS22TPSI-P OAS-LP31
125,000 (36.63kW)
FPB-33RBS31TPSI-N OAS-NG11 FPB-33RBS31TPSI-P OAS-LP29
150,000 (43.96kW)
FPB-20SBS16TPSI-N OAS-NG29 FPB-20SBS16TPSI-P OAS-LP41
75,000 (21.98kW)
FPB-26SBS22TPSI-N OAS-NG16 FPB-26SBS22TPSI-P OAS-LP31
125,000 (36.63kW)
FPB-32SBS31TPSI-N OAS-NG11 FPB-32SBS31TPSI-P OAS-LP29
150,000 (43.96kW)
Table 2
Btu Specifications. See LP conversions in accessory page.
Model:
Natural Gas (NG)
Model:
Propane Gas (LP)
A
Pan
Depth
B
Min/Max
Install Opening
C
Inside
Pan
D
Ground
Level
E
Side
Wall
F
Combustible
Ceiling
G
Combustible
Floor
FPB-19RBS16TPSI-N FPB-19RBS16TPSI-P
2 ¾”
19 ¼” - 20”
19”
8”
36”
96”
18”
FPB-25RBS22TPSI-N FPB-25RBS22TPSI-P
2 ¾”
25 ¼”- 26”
25”
8”
36”
120”
18”
FPB-29RBS22TPSI-N FPB-29RBS22TPSI-P
2 ¾”
30 ¼”- 31”
29”
8”
36”
120”
18”
FPB-33RBS31TPSI-N FPB-33RBS31TPSI-P
2 ¾”
34 ¼ - 35”
33”
8”
36”
120”
18”
FPB-20SBS16TPSI-N FPB-20SBS16TPSI-P
2 ¾”
20 ¼”- 21”
20”
8”
36”
96”
18”
FPB-26SBS22TPSI-N FPB-26SBS22TPSI-P
2 ¾”
26 ¼”- 27”
26”
8”
36”
120”
18”
FPB-32SBS31TPSI-N FPB-32SBS31TPSI-P
2 ¾”
32 ¼”- 33”
32”
8”
36”
120”
18”
Disclaimer:
Btu listings are based on
7.0”WC for Natural Gas and 11.0”WC for
Liquid Propane (LP) to the gas valve. 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.
Pressure
NG
LP
Min. Inlet
3.5”WC (0.87kPa)
10.5” WC
(2.61kPa)
Max. Inlet
10.5” WC
(2.61kPa)
13.0” WC
(3.23kPa)
Normal Inlet 7.0” WC
(1.74kPa)
11.0” WC
(2.73kPa)
Table 3
Gas Pressure
