by Generac
Generac Guardian 10kW
10 kW standby generator
Key specifications
- Rated output, propane
- 10 kW
- Rated output, natural gas
- 9 kW
- Fuel
- Dual fuel (NG / LP)
- Phase
- Single-phase
- MSRP (starting)
- $3,649
- Dimensions
- 48 x 25 x 29 in
- Weight
- 338 lb
- Engine displacement
- 460 cc
- Sound, running (23 ft)
- 61 dB
- Sound, exercise (23 ft)
- 57 dB
- Warranty
- 5 years
Unverifiable specs are omitted, not estimated. See sources below for what we can defend.
Fuel use
| Fuel | Half load | Full load |
|---|---|---|
| Propane | 0.97 gal/hr | 1.48 gal/hr |
| Natural gas | 101 ft³/hr | 127 ft³/hr |
On propane, a 500-gallon tank filled to 80% holds about 400 gallons. That runs the Generac Guardian 10kW for about 412 hours (17.2 days) nonstop at half load, or about 270 hours (11.3 days) at full load. See how much propane a generator uses for other tank sizes.
On natural gas, the gas line and meter have to deliver the full-load figure, 127 ft³/hr, even if the generator rarely runs that hard. Installers size the pipe to it.
Sources
Every spec above traces back to one of these citations.
- Generac product page — Standby Generator 10kW WiFi Enabled (G0071710) · checked July 2026
- Generac spec sheet: 10/14/18 kW Guardian Series · checked September 2026
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