Champion 6500W Tri Fuel Inverter
#4 in LargeFull review
A mid-size home-backup inverter for people with a natural gas line or a transfer switch who want unattended starting. It also covers a 30 A RV.
Amazon $1,299$1,299
3.8/5
A mid-priced tri-fuel inverter for home backup through a transfer switch, especially for houses with a natural gas line. Auto start, app control and CO shutoff are unusual at this price.
- 6,000 / 8,000 WRunning / starting
- Gasoline, propane, natural gasFuel
- 10 hr at 25% loadRun time
- 62 dBA at light loadNoise
- 144.6 lbWeight
- $0.25Price / W
Check price at Amazon$1,499.99
Price checked October 22, 2026. As an Amazon Associate we earn from qualifying purchases.
Pros
- Runs on gasoline, propane or natural gas, so a home gas line can keep it going indefinitely
- A 50 A outlet and 2-wire auto start let it work with a transfer switch and start itself in an outage
- Start and monitor it from a phone over Bluetooth
- Shuts itself off if carbon monoxide builds up
Cons
- About 145 lb, so moving it needs the wheels and level ground
- Natural gas output drops to 4,800 running watts
- Three-year warranty trails DuroMax’s five
How it scores
The rating comes from 7 measured or published factors, each scored 0-100 against fixed reference points for its size. How we rank explains each one.
Specifications
| Model number | GM8000iETC |
|---|---|
| Output | |
| Gasoline | 6,000 W running, 8,000 W starting |
| Propane | 5,500 W running, 7,250 W starting |
| Natural gas | 4,800 W running |
| Outlets | 2 × 120 V, L5-30, USB |
| Parallel capable | Yes |
| Total harmonic distortion | under 3% |
| Price per watt | $0.25 |
| Fuel and run time | |
| Fuel | Gasoline, propane, natural gas |
| Tank | 3.6 gal |
| Run time (gasoline) | 10 hr at 25% load |
| Engine | 312 cc |
| Noise and safety | |
| Rated noise (light load) | 62 dBA |
| CO shutoff | Yes |
| Build | |
| Starting | Remote, electric and recoil |
| App | Yes |
| Wheels | Yes |
| Dimensions | 24.0 x 18.5 x 21.1 in |
| Weight | 144.6 lb |
| Warranty | 3 years |
Alternatives in this size
WEN TF1050iX
#5 in LargeFull review
A tri-fuel home-backup inverter that can sit on natural gas indefinitely. Good for a transfer switch or a 50 A RV.
WEN $1,649$1,649
Champion 10000W Tri Fuel Open Frame
#7 in LargeFull review
A big, low-cost-per-watt open-frame inverter for whole-house backup on gas, propane or natural gas. Too loud for campgrounds.
Amazon $1,398.82$1,398.82
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