REV. A Page 4
Fire Ring Burners
FIRE RING SPECIFICATIONS
Table 1
Suggested pan sizes and clearance specifications
Fig. 1
Fire Ring Dimensions; refer to Table 1.
Model:
Orifice NG
Natural Gas
Btu’s Orifice LP
FG-FR-6SSK
OAS-NG34
50,000
(14.65kW)
OAS-LP47
FG-FR-12SSK
OAS-NG34
50,000
(14.65kW)
OAS-LP47
FG-FR-18SSK
OAS-NG29
75,000
(21.9kW)
OAS-LP41
FG-FR-24SSK
OAS-NG22
100,000 (29.31kW)
OAS-LP35
FG-FR-30SSK
OAS-NG25/64” 250,000 (73.26kW)
OAS-LP12
FG-FR-36SSK
OAS-NG25/64” 250,000 (73.26kW)
OAS-LP12
FG-FR-48SSK
OAS-NG25/64” 250,000 (73.26kW)
OAS-LP12
Table 2
Btu Specifications
Table 3
Gas Pressures
Models
Fire Ring Kit
Center
Hub
Size
Pan/Disc
Depth
A
Fire Ring
Diameter
Min. Inside
Pan
Dimension
B
Combustible
Side Wall
C
Combustible
Ceiling
D
Combustible
Floor
FG-FR-6SSK
½”
2 ½” - 3”
6”
10”
36”
96”
18”
FG-FR-12SSK
½”
2 ½” - 3”
12”
16”
36”
96”
18”
FG-FR-18SSK
½”
2 ½” - 3”
18”
22”
36”
96”
18”
FG-FR-24SSK
½”
2 ½” - 3”
24”
28”
36”
96”
18”
FG-FR-30SSK
¾”
2 ½” - 3”
30”
34”
36”
96”
18”
FG-FR-36SSK
¾”
2 ½” - 3”
36”
40”
36”
96”
18”
FG-FR-48SSK
¾”
2 ½” - 3”
48”
52”
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.
BEFORE INSTALLING A FIRE RING DETERMINE PAN SIZE TO BE USED:
Fire Ring Kits listed above are not provided with a burner pan for installation. We suggest you provide an appropriate
non-combustible burner pan to install the Fire Ring. Suggested burner pans sizes in Table 1 are strictly recommended
based on the Fire Ring model size. The pans can be round, square, flat disc or solid flat surface.
NOTE:
It is
recommended to use 304 Stainless Steel. Burner pans should have ¼” drainage holes to prevent standing water in pan
and the center hole for burner connection should be 1-inch diameter for kits FG-FR-6SSK, FG-FR-12SSK, FG-FR-18SSK,
and FG-FR-24SSK. The FG-FR-30SSK, FG-FR-36SSK, and FG-FR-48SSK models require a 1¼” center hole.
A recommended material thickness for any burner pan or disc is 16 gage. Once a burner pan has been determined then
proceed with this manual to complete the installation.
CAUTION: DO NOT use stiff screen/perforated metal as a burner pan. Some gases are heavier than air and
screen/perforated metal can allow gas to flow downward in an enclosure which could cause delayed ignition or
explosions.
A
C
B
D
CL
24”
Max
Overhang
(Center Line)
Fig. 2
Clearance to combustibles
Pressure
NG
LP
Min. Inlet
5.0” WC
(1.24kPa)
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)
