
Westinghouse WGen9500DF vs DuroMax XP12000HX
Both deliver 9500 running watts, but DuroMax runs longer and has 5-year warranty, while Westinghouse is lighter with 12500 starting watts.
- DuroMax XP12000HX
- Westinghouse WGen9500DF
Comparison Overview
The biggest real-world difference is endurance and warranty: the DuroMax XP12000HX runs up to 19 hours at 25% load and carries a 5-year warranty, while the Westinghouse WGen9500DF is rated for 12 hours at 25% load with a 3-year warranty. If you expect long outages or want fewer refuel stops, that extra runtime can matter more than small spec gaps.
On power, these are very close for typical home backup loads. Both deliver 9500 running watts and are dual-fuel, so you can choose gasoline for maximum output or propane for easier storage and cleaner fueling. Westinghouse has a slight edge in surge capacity at 12500 starting watts versus 12000 starting watts on the DuroMax, which can help with motor starts like a well pump or larger AC.
They’re similarly loud at 74 dB, and neither is an inverter model, so they’re better for backup power and tools than for ultra-quiet camping or sensitive electronics without a quality surge protector. Westinghouse is lighter at 211 lb versus 230 lb, which can make moving and storing it a bit less of a chore. Pick Westinghouse if you value a little more starting headroom and easier handling, or DuroMax if runtime and longer warranty are your priorities.
Key takeaways
- Both deliver 9500 running watts, dual-fuel flexibility, and 74 dB rated noise.
- Westinghouse WGen9500DF offers 12500 starting watts and weighs 211 lb.
- DuroMax XP12000HX provides 19 hours runtime at 25% load and 5-year warranty.
- At 50% load, Westinghouse runs 8 hours, DuroMax runs 9 hours.
- Neither is an inverter generator, better for backup and tools than quiet camping.
Best use cases
Choose the Westinghouse WGen9500DF if you want the most starting punch in this pair and a slightly easier generator to move around. With 12500 starting watts and 9500 running watts, it’s a strong fit for home backup where you may be starting motor loads, like a sump pump, well pump, refrigerator compressor, or a central AC that needs a higher surge to kick on. The 211 lb weight is still heavy, but it’s noticeably less than the DuroMax, which can matter if you roll it out of a garage for storms and then store it again. The tradeoff is shorter listed runtime (12 hours at 25% load, 8 hours at 50%), so you may refuel more often during multi-day outages.
Choose the DuroMax XP12000HX if your main goal is longer stretches between refueling and longer coverage. Its 19-hour runtime at 25% load and 9-hour runtime at 50% load are a practical advantage for overnight use, extended outages, or job site days where you do not want to babysit fuel. The 5-year warranty is also a meaningful differentiator if you plan to keep the generator for many seasons. Power is essentially the same for steady loads at 9500 running watts, but it has slightly less surge capacity at 12000 starting watts, so very surge-heavy setups may need more careful load management. It’s also heavier at 230 lb, which can be a downside if you frequently move it alone.
For RV and camping use, both are louder (74 dB) and non-inverter, so they’re generally better as home backup or tool power than as “quiet campground” generators.
Verdict & recommendation
If your priority is longer runtime and longer warranty coverage, the DuroMax XP12000HX is the more comfortable choice for extended outages and all-day use, thanks to up to 19 hours at 25% load and a 5-year warranty. If your priority is a bit more starting headroom for motor-driven appliances and a slightly easier unit to maneuver, the Westinghouse WGen9500DF stands out with 12500 starting watts and a lighter 211 lb build.
Because both are dual-fuel, non-inverter models with the same 9500 running watts and similar 74 dB noise, the decision mostly comes down to how you value surge capacity and portability versus runtime and warranty. Match the pick to your outage length, refueling tolerance, and how often you’ll move the generator.
Last updated February 26, 2026
| Specification | DuroMax XP12000HX | Westinghouse WGen9500DF |
|---|---|---|
| General | ||
| Product type | Generator | Generator |
| Fuel | Dual-Fuel | Dual-Fuel |
| Inverter | No | No |
| Parallel capable | No | No |
| RV ready | Yes | No |
| Running watts | Winner: Winner: 9500 W | Winner: Winner: 9500 W |
| Starting watts | 12000 W | Winner: Winner: 12500 W |
| Noise (lower limit) | Winner: Winner: 74 dB | Winner: Winner: 74 dB |
| Weight | 230 lbs | Winner: Winner: 211 lbs |
| Run time @50% load | Winner: Winner: 9 h | 8 h |
| Run time @25% load | 19 h | 12 h |
| Fuel tank | 8.3 gal | 6.6 gal |
| Fuel gauge | Yes | Yes |
| Approx. dimensions (L × W × H) | 29 x 30 x 26 | 27.2 x 26.1 x 26.5 |
| Electrical | ||
| Voltage (AC) | 120/240 | 120/240V 60 Hz |
| Voltage (DC) | Not available | Not available |
| GFCI outlets | Yes | Yes |
| Covered outlets | No | Yes |
| Automatic Voltage Regulation | Yes | Yes |
| THD | Not available | Not available |
| Engine | ||
| Engine | 457 cc OHV 4-stroke, cast iron sleeve | Westinghouse OHV 4-stroke, cast iron sleeve |
| Alternator | Not available | Not available |
| Starting system | Recoil, Electric | Recoil, Electric, Remote |
| Warranty | ||
| Warranty | 5 years | 3 years |
| Power by fuel | ||
| Gasoline | Not available | Not available |
| Running watts | 9500 W | 9500 W |
| Starting watts | 12000 W | 12500 W |
| Running amps (120V) | Not available | Not available |
| Running amps (240V) | Not available | Not available |
| Peak amps (120V) | Not available | Not available |
| Peak amps (240V) | Not available | Not available |
| Run time @50% load | 9 h | 8 h |
| Run time @25% load | 19 h | 12 h |
| Propane | Not available | Not available |
| Running watts | 9025 W | 8500 W |
| Starting watts | 11400 W | 11200 W |
| Running amps (120V) | Not available | Not available |
| Running amps (240V) | Not available | Not available |
| Peak amps (120V) | Not available | Not available |
| Peak amps (240V) | Not available | Not available |
| Run time @50% load | 3.5 h | Not available |
| Run time @25% load | 7 h | Not available |
| Other | ||
| Data center | Not available | Not available |
| Indicators | true | false |
| Compliance | CARB, EPA | CARB, EPA |
| Security | Not available | Not available |
| Spark arrestor | Yes | Yes |
| Neutral | Not available | true |
| UPC | 811640016227 | 853544008298 |
| Core / High-priority specs | ||
| Running Watts (Gasoline) | 9500 | 9500 |
| Running Watts (Propane) | 9025 | 8500 |
| Starting Watts (Gasoline) | 12000 | 12500 |
| Starting Watts (Propane) | 11400 | 11200 |
| Runtime @ 50% Load (Gasoline) | 9 | 8 |
| Runtime @ 50% Load (Propane) | 3.5 | Not available |
| Runtime @ 25% Load (Gasoline) | 19 | 12 |
| Runtime @ 25% Load (Propane) | 7 | Not available |
| AC Outlet Types | 2x Duplex 120V 20A (5-20R); 1x 120V 30A (L5-30R); 1x 120/240V 30A (L14-30R); 1x 120/240V 50A (14-50R) | 2x Duplex 120V 20A (5-20R); 1x 120/240V 30A (L14-30R); 1x 120/240V 50A (14-50R) |
| Electrical & power | ||
| Frequency | 60 | 60 |
| Engine & construction | ||
| Engine Type | OHV 4-stroke | OHV 4-stroke, cast iron sleeve |
| Engine Displacement | 457 | 457 |
| Cylinder Sleeve | Cast iron sleeve | Cast iron sleeve |
| Alternator Winding Material | Copper windings | Not available |
| Engine Oil Type | Not available | SAE 10W-30 |
| Runtime & fuel system | ||
| Runtime @ 25% Load (Gasoline) | 19 | 12 |
| Runtime @ 50% Load (Gasoline) | 9 | 8 |
| Runtime @ 50% Load (Propane) | 3.5 | Not available |
| Safety & compliance | ||
| Overload Protection System | Low oil and overload protection | Low oil and overload protection |
| Low Oil Protection | Yes | Yes |
| Carbon Monoxide Monitoring | Yes | No |
| Included equipment | ||
| Mobility Components | Not available | Yes |
| Starting Components | Recoil, Electric | Not available |
| Included Accessories | Funnel, tool kit, propane hose, battery, and wheel kit | Oil, funnel, tool kit, key fob, battery charger, propane hose, battery, and wheel kit |
| Warranty & identification | ||
| Residential Warranty | 5 | 3 |
| Commercial Warranty | 5 | 3 |
| Additional specs | ||
| Summary | The DuroMax XP12000HX is a 9,500-watt dual-fuel generator built for job sites, home backup, and RV use. Its 12,000-watt peak capacity handles the startup surge of air conditioners, compressors, and welders, while the 9,500-watt running output sustains multiple heavy tools or household circuits simultaneously. Gasoline delivers 19 hours of runtime at quarter load, making this unit suitable for extended outages or multi-day events without constant refueling.
The dual-fuel design means users can switch between gasoline and propane depending on fuel availability and storage constraints. On propane at 25% load, runtime drops to 7 hours, trading endurance for cleaner emissions and longer shelf life. The 457 cc cast iron engine is built for durability on job sites where generators take abuse. This is a stationary workhorse, not a portable grab-and-go unit. | The Westinghouse WGen9500DF is a dual fuel portable generator capable of producing up to 12,500 peak watts and 9,500 running watts on gasoline, and 11,200 peak watts and 8,500 running watts on propane. It features a 457cc 4-Stroke OHV engine, push-button electric start with remote key fob, and a VFT Data Center displaying real-time information. Designed for home backup, job sites, or recreational use, it offers up to 12 hours of run time on a 6.6-gallon fuel tank. |
- Most PowerfulDuroMax XP12000HX9500W running
- QuietestDuroMax XP12000HX74 dB
- Longest RuntimeDuroMax XP12000HX9h at 50% load


