Champion 22kW fleX
#2 in 15 to 22 kWFull review
For coastal or wet climates that want Champion’s 22 kW and long warranty in a rust-proof aluminum housing.
Amazon $6,399$6,399
The Champion 22kW fleX rates 4.0 among 15 to 22 kw standby generators; the Generac 24kW Standby 7326 rates 3.2 among over 22 kw ones. The Champion 22kW fleX costs $476.10 less ($6,399 vs $6,875.10).
Generac 24kW Standby 7326
#3 in Over 22 kWFull review
For larger homes with a big air conditioner or electric range that want headroom on propane.
Amazon $6,875.10$6,875.10
Prices were last checked November 1, 2026 and are subject to change; the price and availability shown by the retailer at the time of purchase apply.
Scores side by side
These two sit in different size classes (15 to 22 kw and over 22 kw), and each is scored against the reference points for its own class, so a rating says how well each does among its own size peers. How we rank explains each factor.
| Factor weight | Champion 22kW fleX | Generac 24kW Standby 7326 |
|---|---|---|
| Overall rating | 4.0/5 | 3.2/5 |
| Value 35% | 49 $291 per kW ($6,399 with transfer switch, 22 kW on propane) | 33 $286 per kW ($6,875 with transfer switch, 24 kW on propane) |
| Transfer switch 15% | 100 includes a 200 A transfer switch | 100 includes a 200 A transfer switch |
| Noise 15% | 42 67 dBA rated in normal operation | 42 67 dBA rated in normal operation |
| Power quality 10% | 83 under 5% THD | 83 under 5% THD |
| Warranty 25% | 100 10-year warranty | 29 5-year warranty |
Specifications
| Champion 22kW fleX | Generac 24kW Standby 7326 | |
|---|---|---|
| Output | ||
| Rated output, propane | 22 kW | 24 kW |
| Rated output, natural gas | 19.8 kW | 22.5 kW |
| THD | Under 5% | Under 5% |
| Engine | 999 cc | 997 cc |
| Engine speed | 3,600 rpm | 3,600 rpm |
| Install | ||
| Transfer switch | Included, 200 A | Included, 200 A |
| Load management | No | No |
| Remote monitoring | No | Yes |
| Enclosure | Aluminum | Aluminum |
| Dimensions | 59.4 x 31.5 x 45.9 in | 46.4 x 26.3 x 30.7 in |
| Weight | 697 lb | 461 lb |
| Noise and warranty | ||
| Noise, normal operation | 67 dBA | 67 dBA |
| Noise, weekly self-test | - | 55 dBA |
| Warranty | 10 years | 5 years |
| Released | - | 2025 |