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 Champion 26kW fleX rates 3.8 among over 22 kw ones. The Champion 22kW fleX costs $1,100 less ($6,399 vs $7,499).
Prices were last checked November 9, 2026. Product prices and availability are accurate as of that date and are subject to change; the price and availability shown on Amazon or the retailer's site at the time of purchase apply. As an Amazon Associate we earn from qualifying purchases.
Champion 26kW fleX
#1 in Over 22 kWFull review
For larger homes that want 26 kW in a rust-proof aluminum housing with the longest warranty in its class.
AP Electric $7,499$7,499
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 | Champion 26kW fleX |
|---|---|---|
| Overall rating | 4.0/5 | 3.8/5 |
| Value 35% | 49 $291 per kW ($6,399 with transfer switch, 22 kW on propane) | 32 $288 per kW ($7,499 with transfer switch, 26 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 | 33 68 dBA rated in normal operation |
| Power quality 10% | 83 under 5% THD | 83 under 5% THD |
| Warranty 25% | 100 10-year warranty | 100 10-year warranty |
Specifications
| Champion 22kW fleX | Champion 26kW fleX | |
|---|---|---|
| Output | ||
| Rated output, propane | 22 kW | 26 kW |
| Rated output, natural gas | 19.8 kW | 23.4 kW |
| THD | Under 5% | Under 5% |
| Engine | 999 cc | 999 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 | No |
| Enclosure | Aluminum | Aluminum |
| Dimensions | 59.4 x 31.5 x 45.9 in | 57.4 x 29.5 x 43.9 in |
| Weight | 697 lb | 642.7 lb |
| Noise and warranty | ||
| Noise, normal operation | 67 dBA | 68 dBA |
| Warranty | 10 years | 10 years |