Briggs & 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.
Figure 7 — Fuel Supply Requirements
Model | Natural Gas* | LP Vapor** | ||
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| 1/2 Load | Full Load | 1/2 Load | Full Load |
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84 | 162 | 34.19 | 65.81 | |
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102 | 195 | 41.03 | 78.63 | |
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* = Natural Gas is in cubic feet per hour ** = LP Vapor is in cubic feet per hour
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.
Figure 8 — NATURAL GAS (NG) Pipe Size - Gas Flow Chart, in cubic feet per hour
NPT | 10ft | 15ft | 20ft | 30ft | 40ft | 50ft | 60ft | 70ft | 80ft | 90ft | 100ft |
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3/4” | 346 | 293 | 240 | 192 | 163 | 145 | 132 | 120 | 113 | 106 | 99 |
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1” | 653 | 549 | 446 | 360 | 307 | 274 | 250 | 230 | 211 | 197 | 187 |
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Natural Gas (sg=0.65) |
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Figure 9 — LIQUID PROPANE (LP) GAS Pipe Size - Gas Flow Chart, in cubic feet per hour |
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NPT | 10ft | 15ft | 20ft | 30ft | 40ft | 50ft | 60ft | 70ft | 80ft | 90ft | 100ft |
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3/4” | 277 | 192 | 158 | 126 | 107 | 95 | 87 | 79 | 74 | 69 | 65 |
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1” | 428 | 360 | 293 | 236 | 202 | 180 | 164 | 151 | 139 | 129 | 123 |
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Liquid Propane (LP) (sg=1.50)
9