Briggs & Stratton 202826GS User Manual
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BRIGGSandSTRATTON.COM
Fuel Consumption
Estimatedfuelsupplyrequirementsathalfandfullloadfor
naturalgasandLPvaporfuelsareshownbelow.
Fuel Pipe Sizing
Thetablesbelowprovidethemaximumcapacityofpipein
cubicfeetofgasperhourforgaspressuresof0.5psior
lessandapressuredropof0.3in.watercolumn.Specific
gravityofgasisshown.
Listedvaluescompensateforanominalamountof
restrictionfrombends,fittings,etc.Ifanunusualnumberof
fittings,bends,orotherrestrictionsareused,pleasereferto
federalandlocalcodes.
Required Propane Tank Size
Therequiredsizeofthepropanetankatvarious
temperatureswhenkeptatleasthalffullisshownbelow
inthechart.Giventhegaswithdrawalrateandthelowest
averagewintertemperature,aninstallercanspecifythe
requiredLPstoragetanksize.
Natural Gas
LP Vapor
1/Load
FullLoad
1/Load
FullLoad
18kW
160C
93C
N/A
N/A
160,000B 93,000B
N/A
N/A
20kW
N/A
N/A
70.4C
141.5C
N/A
N/A
176,85B 353,650B
C=Cubicfeetperhour
B=BTU’sperhour
NPT
10ft
15ft
20ft
30ft
40ft
50ft
60ft
70ft
80ft
90ft
100ft
3/4”
346
93
40
19
163
145
13
10
113
106
99
1”
653
549
446
360
307
74
50
30
11
197
187
Natural Gas Pipe Size - Gas Flow chart, in cubic feet per hour, specific gravity=0.65
NPT
10ft
15ft
20ft
30ft
40ft
50ft
60ft
70ft
80ft
90ft
100ft
3/4”
77
19
158
16
107
95
87
79
74
69
65
1”
48
360
93
36
0
180
164
151
139
19
13
Liquid Propane (LP) Gas Pipe Size - Gas Flow chart, in cubic feet per hour, specific gravity=1.50
Physical Properties
LP Vapor
Natural
Gas
NormalAtmosphericState
Gas
Gas
BoilingPoint(in°F):
Initial
End
-44
-44
-59
-59
HeatingValue:
BTUpergallon(NetLHV*)
BTUpergallon(gross**)
Cubicfeet(gas)
83,340
91,547
,500
63,310
1,000
Density***
36.39
57.75
Weight†
4.4
.65
OctaneNumber:
Research
Motor
110+
97
110+
*
LHV(LowHeatValue)isthemorerealisticrating.
** Grossheatvaluedoesnotconsiderheatlostintheformofwater
duringcombustion.
*** Densityisgivenin“CubicFeetofGasperGallonofLiquid”.
†
Weightisgivenin“PoundsperGallonofLiquid”.
Withdrawal Rate
32° F
20° F
10° F
0° F
-10° F
-30° F
-40° F
50CFH
115
115
115
50
50
400
600
100CFH
50
50
50
400
500
1000
1500
150CFH
300
400
500
500
1000
1500
500
00CFH
400
500
750
1000
100
000
500
300CFH
750
1000
1500
000
500
4000
5000