ENGLISH
Installation - Natural Gas
Natural Gas Supply Installation Guidelines
1. The gas supply line must have enough capacity to supply the burner
with its rated gas output.
2. The flame output may be too low if the gas line is too small.
3. Smooth walled pipe should be used as a supply line. Excessive
corrugated line will cause unwanted restriction and potential noise due
to gas flow.
4. Gas pressure at the unit should be within 5-7 in. WC to keep
restriction to a minimum.
5. Ensure that the length of the gas line and pipe diameter is properly
sized for the burner output (see Pipe Sizing Chart below). Add 1’ to 5’ to
the line length for every elbow or additional fitting. If you have another
natural gas appliance sharing the same line, add the BTU output to
provide to provide the proper pipe size.
Natural Gas Pipe Sizing Chart*
*Maximum delivery capacity of pipes in BTU/hour at different diameters and lengths for an initial pressure of 7-inch water
column. Note: 1 cubic feet per hour = 1000 BTU
As an example, to install a Brown Jordan Fires FLO with a G37 burner (65,000 BTU) and located about 90 feet from the
natural gas supply line with 2 elbow fittings, you would need at least a ¾” pipe minimum.
Length of Pipe in Feet
Size of Pipe in Inches (inside diameter)
½”
¾”
1”
10
108,000
230,000
387,000
20
75,000
160,000
280,000
30
61,000
129,000
224,000
40
52,000
110,000
196,000
50
46,000
98,000
177,000
60
42,000
89,000
159,000
70
38,000
82,000
149,000
80
36,000
46,000
140,000
90
33,000
71,000
133,000
100
32,000
68,000
125,000
125
28,000
60,000
117,000
150
25,000
54,000
105,000
175
23,000
50,000
93,000
Содержание ESF.2.B.G16
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