The Westinghouse WGen9500TFc is the better portable generator overall, rated 4.3 to 4.2. The Westinghouse WGen9500TFc leads on fuel options. The Westinghouse WGen9500DFc costs $100 less ($1,049 vs $1,149).
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 $1,149A large dual-fuel generator with remote start and a 50 A outlet for home backup through a transfer switch at a low price per watt. Buyers who want longer run time per tank should look at the 9.5 gal WGen10500DFc.
Amazon $1,049Prices 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.
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 | Westinghouse WGen9500TFc | Westinghouse WGen9500DFc |
|---|---|---|
| Overall rating | 4.3/5 | 4.2/5 |
| Value 30% | 76 $0.12 per running watt | 82 $0.11 per running watt |
| Run time 15% | 40 8 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 | 70 gasoline or propane |
| 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% | 100 electric start with a remote fob or app | 100 electric start with a remote fob or app |
| Westinghouse WGen9500TFc | Westinghouse WGen9500DFc | |
|---|---|---|
| Output | ||
| Gasoline | 9,500 W running, 12,500 W starting | 9,500 W running, 12,500 W starting |
| Propane | 8,500 W running, 11,200 W starting | 8,500 W running, 11,200 W starting |
| Natural gas | 7,500 W running, 9,500 W starting | - |
| Outlets | 4 × 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% | under 23% |
| Price per watt | $0.12 | $0.11 |
| Fuel and run time | ||
| Fuel | Gasoline, propane, natural gas | Gasoline, propane |
| Tank | 6.6 gal | 6.6 gal |
| Run time (gasoline) | 8 hr at 50% load | 8 hr at 50% load |
| Run time (propane, 20 lb tank) | 7 hr | 7 hr |
| Engine | 457 cc | 457 cc |
| Noise and safety | ||
| Rated noise | 74 dBA | 74 dBA |
| CO shutoff | Yes | Yes |
| CARB compliant | No | No |
| Build | ||
| Starting | Remote, electric and recoil | Remote, electric and recoil |
| Wheels | Yes | Yes |
| Dimensions | 27.2 x 26.1 x 26.5 in | 27.2 x 26.1 x 26.5 in |
| Weight | 215 lb | 212.1 lb |
| Warranty | 3 years | 3 years |
| Released | 2023-04 | 2021-12 |
