6 15–20 kw natural gas 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 QT015 | 15.0 kW | — | — | — | — |
| Generac Home Standby - 15 | 15.0 kW | 1-phase | — | 444.52 kg | — |
| Generac Home Standby 15 | 15.0 kW | 1 | — | 860.0 kg | — |
| Kohler 17RES | 16.0 kW | — | — | — | — |
| MAN AM135845 | 17.1 kW | — | — | — | — |
| PowerLink ACG20S-NG | 18.0 kW | — | — | — | — |
Among 15–20 kW Natural Gas generators in this comparison, the Generac Home Standby - 15 is lightest at 444.52 kg dry weight.
Not every model reports every spec — blanks mean the source document didn't state that figure, not that the value is zero.