Generac GP9500E Tri Fuel
#4 in LargeFull review
A large tri-fuel generator for whole-home backup through a transfer switch, best for homes with a natural gas line. It is one of the cheapest ways to get 9,500 W and three fuels.
Amazon $1,169$1,169
The Generac GP9500E Tri Fuel and the Westinghouse WGen9500TFc are evenly matched, rated 4.3 and 4.3. The Generac GP9500E Tri Fuel leads on run time. The Westinghouse WGen9500TFc wins on starting. The Westinghouse WGen9500TFc costs $20 less ($1,149 vs $1,169).
Westinghouse WGen9500TFc
#8 in LargeFull review
A large tri-fuel generator for home backup through a 50 A transfer switch, for homeowners with a natural gas line who want to run as long as the outage lasts. Costs little more than the dual-fuel WGen9500DFc.
Amazon $1,149$1,149
Prices were last checked October 28, 2026 and are subject to change; the price and availability shown by the retailer at the time of purchase apply.
Which should you buy?
- Choose the Generac GP9500E Tri Fuel for run time (9.5 hours on a tank at 50% load vs 8 hours on a tank at 50% load).
- Choose the Westinghouse WGen9500TFc for starting (electric start with a remote fob or app vs push-button electric start).
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every large portable generator; a clear win is highlighted. How we rank explains each one.
| Factor weight | Generac GP9500E Tri Fuel | Westinghouse WGen9500TFc |
|---|---|---|
| Overall rating | 4.3/5 | 4.3/5 |
| Value 30% | 75 $0.12 per running watt | 76 $0.12 per running watt |
| Run time 15% | 55 9.5 hours on a tank at 50% load | 40 8 hours on a tank at 50% load |
| Fuel options 15% | 100 gasoline, propane or natural gas | 100 gasoline, propane or natural gas |
| Home hookup 15% | 100 240 V outlet for a transfer switch | 100 240 V outlet for a transfer switch |
| CO safety 10% | 100 shuts off when carbon monoxide builds up | 100 shuts off when carbon monoxide builds up |
| Warranty 10% | 67 3-year warranty | 67 3-year warranty |
| Starting 5% | 80 push-button electric start | 100 electric start with a remote fob or app |
Specifications
| Generac GP9500E Tri Fuel | Westinghouse WGen9500TFc | |
|---|---|---|
| Output | ||
| Gasoline | 9,500 W running, 12,500 W starting | 9,500 W running, 12,500 W starting |
| Propane | 8,550 W running, 11,250 W starting | 8,500 W running, 11,200 W starting |
| Natural gas | 7,000 W running, 9,000 W starting | 7,500 W running, 9,500 W starting |
| Outlets | 2 × 120 V, L14-30, 14-50 | 4 × 120 V, L14-30, 14-50 |
| Transfer switch ready | Yes, 240 V | Yes, 240 V |
| Full power at 120 V | No | No |
| Total harmonic distortion | - | under 23% |
| Price per watt | $0.12 | $0.12 |
| Fuel and run time | ||
| Fuel | Gasoline, propane, natural gas | Gasoline, propane, natural gas |
| Tank | 7.5 gal | 6.6 gal |
| Run time (gasoline) | 9.5 hr at 50% load | 8 hr at 50% load |
| Run time (propane, 20 lb tank) | 4.5 hr | 7 hr |
| Engine | 500 cc | 457 cc |
| Noise and safety | ||
| Rated noise | - | 74 dBA |
| CO shutoff | Yes | Yes |
| CARB compliant | No | No |
| Build | ||
| Starting | Electric and recoil | Remote, electric and recoil |
| Wheels | Yes | Yes |
| Dimensions | 27.5 x 27.1 x 27.6 in | 27.2 x 26.1 x 26.5 in |
| Weight | 219 lb | 215 lb |
| Warranty | 3 years | 3 years |
| Released | 2025-05 | 2023-04 |