Head to head
Generac Guardian 22kW vs Generac Guardian 24kW
Generac · Home Standby Generator
Generac Guardian 22kW
~$5,999
22,000 W · up to whole home with central air
Generac · Home Standby Generator
Generac Guardian 24kW
~$7,249
24,000 W · up to whole home with central air
Quick takeThe Generac Guardian 22kW lists about $1,250 lower; the Generac Guardian 24kW puts out more sustained power (24,000 W).
| Spec | Generac Guardian 22kW | Generac Guardian 24kW |
|---|---|---|
| Approx. price | ~$5,999 | ~$7,249 |
| Type | Home Standby Generator | Home Standby Generator |
| Fuel | NG/LP | NG/LP |
| Running / output watts | 22,000 W | 24,000 W |
| Starting / surge watts | 22,000 W | 24,000 W |
| Battery capacity | — | — |
| Expandable to | — | — |
| Noise | 67 dB | 67 dB |
| Runtime | Continuous (runs on home NG/LP supply); 22kW on LP, 19.5kW on NG | Continuous (runs on home NG/LP supply); 24kW on LP, 21kW on NG |
| Outlets | None — hardwired via automatic transfer switch (7043 bundle adds 200A SE switch) | None — hardwired; includes 200A service-entrance PWRview transfer switch |
| Fuel tank | — | — |
| Weight | 466 lbs | 455 lbs |
| Transfer-switch ready | Yes | Yes |
| Warranty | 5-year limited | 5-year limited |
Highlighted cell is the better figure for that row.
Owner pros and cons
Generac Guardian 22kW
- +Enormous installed base — parts, techs, and advice everywhere
- +Carries two AC units in most homes with load shedding
- +Often discounted now that the 24kW is the flagship
- +5-year warranty with widely available extended options
- +Multi-day storm performance in owner reports
- −19.5kW on natural gas — the derate matters for NG homes
- −67 dB is noticeably loud up close; siting matters
- −Being phased out in favor of the 24kW — long-term parts pricing unknown
Generac Guardian 24kW
- +200A SE-rated transfer switch with PWRview monitoring included
- +Highest output-per-footprint in Generac's air-cooled line
- +Starts large AC loads with strong 230 LRA surge capacity
- +Quiet-Test weekly cycle drops to 57 dB
- +Complete-package pricing simplifies installer quotes
- +Mobile Link app gives real status, run history, and alerts
- −21kW on natural gas — plan around the derate
- −67 dB under load is loud near patios and bedroom windows
- −Premium price over the functionally similar 22kW