Fuel Consumption; Fuel Pipe Sizing - Briggs & Stratton 01815-0 Manuel D'installation

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*
1/2 Load Full Load
1938-0 84
1815-0 102
* = Natural Gas is in cubic feet per hour
** = LP Vapor is in cubic feet per hour
Figure 8 — NATURAL GAS (NG) Pipe Size - Gas Flow Chart, in cubic feet per hour
NPT 10ft 15ft
3/4" 346 293
1" 653 549
Natural Gas (sg=0.65)
Figure 9 — LIQUID PROPANE (LP) GAS Pipe Size - Gas Flow Chart, in cubic feet per hour
NPT 10ft 15ft
3/4" 277 192
1" 428 360
Liquid Propane (LP) (sg=1.50)
Briggs & Stratton Power Products Home Generator
Installation Manual
LP Vapor**
1/2 Load Full Load
162 34.19 65.81
195 41.03 78.63
20ft 30ft
240 192
446 360
20ft 30ft
158 126
293 236

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.
40ft 50ft 60ft
163 145 132
307 274 250
40ft 50ft 60ft
107 95 87
202 180 164
9
70ft 80ft 90ft
120 113 106
230 211 197
70ft 80ft 90ft
79 74 69
151 139 129
100ft
99
187
100ft
65
123