25 20–25 kw bi-fuel (ng/lp) generator models side by side — power, phase, sound level, weight and fuel tank capacity, compiled from manufacturer specification sheets.
| Model | Standby | Phase | Sound | Weight | Fuel tank |
|---|---|---|---|---|---|
| Generac QT 1.6L 20kW | 20.0 kW | single-phase or three-phase | — | — | — |
| Generac QT 1.5L 20kW | 20.0 kW | — | — | — | — |
| Cummins/Onan C20 N6 | 20.0 kW | 1 or 3 | — | 241.0 kg | — |
| Kohler 20RCA | 20.0 kW | 1 | 64.0 dBA | 252.0 kg | — |
| Cummins/Onan RS20A | 20.0 kW | 1 | 62.0 dBA | 245.0 kg | — |
| Kohler 20RES | 20.0 kW | Single | 69.0 dBA | 243.0 kg | 15.0 L |
| Cummins/Onan RS20A C20N6H | 20.0 kW | 1 | 65.0 dBA | 241.0 kg | — |
| Cummins/Onan RS20AC C20N6HC | 20.0 kW | 1 | 65.0 dBA | 271.0 kg | — |
| Generac Guardian 20 kW | 20.0 kW | 1 | 67.0 dBA | 203.0 kg | — |
| Briggs & Stratton PP20 | 20.0 kW | Single | 68.0 dBA | 200.0 kg | — |
| Generac G007038 | 20.0 kW | 1 | 67.0 dBA | 203.0 kg | — |
| Generac G007039 | 20.0 kW | 1 | 67.0 dBA | 211.0 kg | — |
| Generac QT020 | 20.0 kW | 1-phase/3-phase | 63.0 dBA | — | — |
| Kohler 24RCL | 21.0 kW | 1 | 61.0 dBA | 531.0 kg | — |
| Cummins/Onan C22 N6 | 22.0 kW | 1 or 3 | — | 1109.0 kg | — |
| Generac 2.4 L | 22.0 kW | — | — | — | — |
| Cummins/Onan RS 22 | 22.0 kW | 1 | 64.0 dBA | 503.0 kg | — |
| Briggs & Stratton PP22 | 22.0 kW | 1 | 66.0 dBA | 225.0 kg | — |
| Generac G007042 | 22.0 kW | 1 | 67.0 dBA | 198.0 kg | — |
| Generac G007043 | 22.0 kW | 1 | 67.0 dBA | 202.0 kg | — |
| Generac QT022 | 22.0 kW | 1-phase | 70.0 dBA | 382.38 kg | — |
| Generac In Line 4 | 22.0 kW | 1-phase,3-phase | — | — | — |
| Kohler 26RCA | 24.0 kW | 1 | 56.0 dBA | 283.0 kg | — |
| FG Wilson UHG30E1 | 24.0 kW | — | 63.6 dBA | 393.0 kg | — |
| FG Wilson UHG24E1S | 24.0 kW | En línea | 64.5 dBA | 393.0 kg | 405.0 L |
Among 20–25 kW Bi-Fuel (NG/LP) generators in this comparison, the Kohler 26RCA is quietest at 56.0 dBA.
Among 20–25 kW Bi-Fuel (NG/LP) generators in this comparison, the Generac G007042 is lightest at 198.0 kg dry weight.
Among 20–25 kW Bi-Fuel (NG/LP) generators in this comparison, the FG Wilson UHG24E1S has the largest fuel tank at 405.0 L.
Not every model reports every spec — blanks mean the source document didn't state that figure, not that the value is zero.