Briggs & Stratton 01938-0 Installation And Start-Up Manual page 9

[_l Brig, s & Stratton Power Products Home Generator
Installation Manual
Fuel Consumption
See Figure 7 for fuel supply requirements at half and full
load for both natural gas and LP vapor.
Model Natural Gas*
I/2 Full
Load Load
1938-0 84 162 34.19
1815-0 102 195 41.03
* = Natural Gas is in cubic feet per hour
** = LPVapor is in cubic feet per hour
LP Vapor **
I/2 Load Full Load
65.8 I
78.63
Fuel Pipe Sizing
Figures 8 and 9 provide the maximum capacity of pipe in
cubic feet of gas per hour for gas pressures of 0.5 psi or
less and a pressure drop of 0.3 in. water column. Specific
gravity of gas is shown.
Listed values compensate for a nominal amount of
restriction from bends, fittings, etc. If an unusual number of
fittings, bends, or other restrictions are used, please refer
to federal and local codes.
I Oft
Y2" 168
¾" 346
I" 653
Natural Gas (sg=0.65)
15E 40E
146 115 93 79
293 240 192 163
549 446 360 307
50ft 80_
70 63 59 55
145 132 120 113
274 250 230 211
90_
51 48
106 99
197 187
NPT 10_ 15_
½" II0 96
¾" 277 192
I" 428 360
Liquefied Petroleum (LP)(sg=l.50)
20_ 30_ 40_ 50_ 60_ 70_ 80_ 90_ 100k
76 61 52 46 42 38 36 33 32
158 126 107 95 87 79 74 69 65
293 236 202 180 164 151 139 129 123
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