Manufacturer-documented fuel consumption for 13 5–10 kW Propane/LPG generator sets — median 1.22 gal/h at full load, 0.74 gal/h at half load.
Compare 5–10 kW Propane/LPG generator specs side-by-side →
| Model | kW | gal/h @ 50% | gal/h @ 100% | Tank (L) | Runtime @ 50% (h) |
|---|---|---|---|---|---|
| Cummins/Onan 5.5 HGJAB-1119 | 6 | 0.61 | 0.95 | — | — |
| Cummins/Onan 5.5 HGJAB-1270 | 6 | 0.61 | 0.95 | — | — |
| Cummins/Onan 5.5 HGJAE-2144 | 6 | 0.61 | 0.95 | — | — |
| Generac A6913 | 6 | 0.86 | 1.08 | — | — |
| Generac C2480 | 6 | 0.86 | 1.08 | — | — |
| Generac EcoGen 005818-0 | 6 | 0.85 | 1.32 | — | — |
| Generac EcoGen 6 kW | 6 | 0.82 | 1.32 | — | — |
| Cummins/Onan 6.5 HGJAB-1272 | 6 | 0.74 | 1.22 | — | — |
| Cummins/Onan 6.5 HGJAB-904 | 6 | 0.74 | 1.22 | — | — |
| Cummins/Onan 6.5 HGJAE-2145 | 6 | 0.74 | 1.22 | — | — |
| Cummins/Onan 6.5 HGJAE-3554 | 6 | 0.74 | 1.22 | — | — |
| Generac G007029-1 | 9 | 0.87 | 1.37 | — | — |
| Generac G007030-1 | 9 | 0.87 | 1.37 | — | — |
Figures from each model’s own manufacturer documentation (spec sheets and manuals); runtime = documented tank capacity ÷ consumption at 50% load. Verify against the datasheet for your exact configuration.
Across 13 models with manufacturer data, full-load consumption runs 0.95–1.37 gal/h (median 1.22); at 50% load the median is 0.74 gal/h.