Westinghouse WGen7500c
#9 in Mid-sizeFull review
A gasoline generator big enough for most essentials through a transfer switch, with remote start. Best for homeowners who don’t need propane and want simple 240 V backup.
Amazon $849$849
The Westinghouse WGen7500c is the better portable generator overall, rated 3.9 to 3.9. The Westinghouse WGen7500c leads on value and starting. The Generac GP8000E EFI wins on run time. The Westinghouse WGen7500c costs $450 less ($849 vs $1,299).
Generac GP8000E EFI
#12 in Mid-sizeFull review
A fuel-injected gasoline generator for backing up a home’s essentials through a 30 A transfer switch, and the GP8000E to buy in California. Elsewhere the carbureted GP8000E does the same job for less.
Amazon $1,299$1,299
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 Westinghouse WGen7500c for value ($0.11 per running watt vs $0.16 per running watt) and starting (electric start with a remote fob or app vs push-button electric start).
- Choose the Generac GP8000E EFI for run time (12 hours on a tank at 50% load vs 8.4 hours on a tank at 50% load (scaled from 25%)).
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every mid-size portable generator; a clear win is highlighted. How we rank explains each one.
| Factor weight | Westinghouse WGen7500c | Generac GP8000E EFI |
|---|---|---|
| Overall rating | 3.9/5 | 3.9/5 |
| Value 30% | 89 $0.11 per running watt | 66 $0.16 per running watt |
| Run time 15% | 44 8.4 hours on a tank at 50% load (scaled from 25%) | 80 12 hours on a tank at 50% load |
| Fuel options 15% | 0 gasoline only | 0 gasoline only |
| 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 | 80 push-button electric start |
Specifications
| Westinghouse WGen7500c | Generac GP8000E EFI | |
|---|---|---|
| Output | ||
| Gasoline | 7,500 W running, 9,500 W starting | 8,000 W running, 10,000 W starting |
| Outlets | 4 × 120 V, L14-30 | 4 × 120 V, L14-30 |
| Transfer switch ready | Yes, 240 V | Yes, 240 V |
| Full power at 120 V | No | No |
| Total harmonic distortion | under 23% | - |
| Price per watt | $0.11 | $0.16 |
| Fuel and run time | ||
| Fuel | Gasoline | Gasoline |
| Tank | 6.6 gal | 7.9 gal |
| Run time (gasoline) | 11 hr at 25% load | 12 hr at 50% load |
| Engine | 420 cc | 420 cc |
| Noise and safety | ||
| Rated noise | 72 dBA | - |
| CO shutoff | Yes | Yes |
| CARB compliant | No | Yes |
| Build | ||
| Starting | Remote, electric and recoil | Electric and recoil |
| Wheels | Yes | Yes |
| Dimensions | 27.2 x 26.1 x 26 in | 30.2 x 27.2 x 26.5 in |
| Weight | 197.1 lb | 207 lb |
| Warranty | 3 years | 3 years |
| Released | 2022-05 | 2025-03 |