Generac Guardian 26kW vs Kohler 26kW RCA
Quick take: The Generac Guardian 26kW costs $250 less; the Generac Guardian 26kW is quieter at 67 dB.
| Spec | Generac Guardian 26kW | Kohler 26kW RCA |
|---|---|---|
| Price | $6,849 | $7,099 |
| Rating | 4.6★ (450) | 4.6★ (150) |
| Type | Home Standby Generator | Home Standby Generator |
| Fuel | NG/LP | NG/LP |
| Running / Output Watts | 26,000W | 26,000W |
| Starting / Surge Watts | 26,000W | 26,000W |
| Battery Capacity | — | — |
| Expandable To | — | — |
| Noise | 67 dB | 70 dB |
| Runtime | Continuous (runs on home NG/LP supply); 26kW on LP, 22.5kW on NG | Continuous (runs on home NG/LP supply); 26kW on LP, 24kW on NG |
| Outlets | None — hardwired via automatic transfer switch (7291 bundle adds 200A ATS) | None — hardwired via automatic transfer switch (sold separately) |
| Fuel Tank | — | — |
| Weight | 518 lbs | 625 lbs |
| Transfer-switch ready | Yes | Yes |
| Warranty | 5-year limited | 5-year/2,000-hour limited |
Pros & cons
Generac Guardian 26kW
- ✓26kW air-cooled tops the class for raw output
- ✓Starts dual AC compressors with load management
- ✓Costs far less than any liquid-cooled alternative
- ✓Compact enclosure for the output — same pad as smaller units
- ✓<5% THD with ±1% voltage regulation
- ✓5-year warranty and ubiquitous parts supply
- ✗22.5kW on natural gas — a 3.5kW derate
- ✗Same Evolution controller failure reports as cheaper Guardians
- ✗67 dB under load; not a small-lot-friendly machine
- ✗Transfer switch extra on this SKU
- ✗Air-cooled engine at max rating runs hot; owners in the South watch oil intervals closely
Kohler 26kW RCA
- ✓Best-in-class 24kW natural gas rating
- ✓Starts dual large AC compressors with PowerBoost
- ✓Build quality and enclosure hardware a step above the price peers
- ✓5-year/2,000-hour warranty; strong extended options
- ✓Oil and pressure sensors protect the engine automatically
- ✓Fewer reported controller issues than the Generac equivalent
- ✗70 dB at rated load — plan placement carefully
- ✗625 lbs demands a bigger pad and crane-assisted placement
- ✗Dealer and installer coverage is spotty outside metro areas
- ✗Transfer switch extra on the base SKU
- ✗Post-storm lead times can run months