Generac Guardian 28kW
Standby generator. Specs from the manufacturer page (checked ).

The Generac Guardian 28kW is a standby generator with 28,000 W running output. It runs on liquid propane or natural gas, rated at 28 kW on propane and 25 kW on natural gas. Its built-in cellular connectivity supports remote monitoring and control through Mobile Link, which requires a Mobile Link premium subscription for the advanced features.
Key features
- Rated 28 kW continuous output on liquid propane and 25 kW on natural gas
- Dual fuel: liquid propane or natural gas
- Built-in cellular connectivity for monitoring and control through Mobile Link; premium subscription required
- Remote diagnostics to help detect issues before they become a problem
- Oil level sensors to help ensure generator readiness
- Improved cold start performance for cold climates
- Sloped roof and rear air intake reduce risk of snow and ice intrusion
- 5-year limited warranty
What it is for
- whole-home backup power
Specifications
| Running watts | 28000 W |
|---|---|
| Fuel | dual-fuel |
| Weight | 238 kg (524.7 lb) |
| Dimensions | 117.9 × 66.8 × 78 cm (46.4 × 26.3 × 30.7 in) |
| Warranty | 5 years |
From the Generac page. Values the manufacturer does not publish are left out.
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Generac Guardian 22kW
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Champion 26 kW fleX Home Standby (201614)
On our lists
Connection and wiring
We have not linked an official manual for this model yet; see the Generac page.
Error codes and troubleshooting
We have not found an official code table for this model yet.
FAQ
Can the Generac Guardian 28kW start a sump pump or well pump?
Starting surge matters more than running watts: this unit is rated 28000 W output (no separate peak published). That covers a typical 1/2 HP sump pump (about 2150 W to start). Use the calculator with your exact pump.