
Westinghouse WGen11500DFc vs DuroMax XP12000HX
Comparing the Westinghouse WGen11500DFc and DuroMax XP12000HX dual-fuel generators. See how 11,500 vs 9,500 running watts and warranty differences stack up.
- DuroMax XP12000HX
- Westinghouse WGen11500DFc
Comparison Overview
The Westinghouse WGen11500DFc delivers 11,500 running watts and 14,500 starting watts, giving it a significant power advantage over the DuroMax XP12000HX, which provides 9,500 running watts and 12,000 starting watts. That's roughly 21% more continuous power from the Westinghouse, a meaningful gap when you're running multiple large appliances or powering demanding equipment. Both units are dual-fuel capable, run on gasoline or propane, weigh the same 230 pounds, and produce 74 dB of noise.
Runtime is nearly identical between the two. The Westinghouse runs about 19 hours at 25% load and 9.5 hours at 50% load, while the DuroMax manages 19 hours at 25% load and 9 hours at 50% load. The DuroMax does hold one notable advantage: it comes with a 5-year warranty compared to the Westinghouse's 3-year warranty, which could matter for buyers who plan to keep their generator for the long haul.
Homeowners who need maximum wattage for whole-house backup will lean toward the Westinghouse WGen11500DFc. Those who want solid power with longer warranty coverage and don't need quite as much output may find the DuroMax XP12000HX a better fit for their budget and peace of mind.
Key takeaways
- Westinghouse WGen11500DFc delivers 11,500 running watts, 2,000 more than the DuroMax
- DuroMax XP12000HX includes a 5-year warranty versus Westinghouse's 3-year coverage
- Both generators weigh 230 pounds and produce 74 dB of noise
- Both are dual-fuel models running on gasoline or propane
- Runtime is nearly identical at 19 hours on 25% load for both units
- Westinghouse offers 14,500 starting watts for high-surge appliances and tools
Best use cases
Choose the Westinghouse WGen11500DFc if you need to power a larger home during outages or run heavy-draw equipment on a job site. With 11,500 running watts, it can handle a central air conditioning unit alongside a refrigerator, sump pump, lights, and other essentials simultaneously. If you live in an area prone to extended power outages from storms or ice, that extra 2,000 watts of running capacity over the DuroMax gives you breathing room to avoid difficult choices about what to turn off. It's also a strong pick for contractors who need to run multiple power tools at once, since the 14,500 starting watts can absorb the surge demands of compressors and saws without tripping.
Choose the DuroMax XP12000HX if your power needs are more moderate and you value long-term reliability assurance. At 9,500 running watts, it still has plenty of capacity for most home backup scenarios, comfortably running a smaller central AC unit or window units, a well pump, kitchen appliances, and electronics. The 5-year warranty is a real differentiator. That's two extra years of manufacturer coverage, which adds up if you're storing this generator for emergency use and want confidence it'll be supported years down the road. The DuroMax also makes sense if you're working within a tighter budget, as models with slightly lower wattage often come in at a lower price point.
Both generators share the same weight, similar runtime, and identical noise levels, so portability and sound won't be deciding factors here. The choice really comes down to how much power you need versus how much warranty protection you want.
Verdict & recommendation
If your priority is raw power output and you want the confidence to run a larger home or demanding equipment without worrying about overloading, the Westinghouse WGen11500DFc is the stronger choice with its 11,500 running watts. If you'd rather have a longer warranty and your power needs fall comfortably within 9,500 running watts, the DuroMax XP12000HX offers solid performance with better long-term coverage.
Neither generator is clearly superior across the board. They weigh the same, sound the same, and run for nearly the same duration on a tank of fuel. The Westinghouse wins on wattage, the DuroMax wins on warranty, and everything else is essentially a wash. Pick based on whichever factor matters more to your specific situation.
Last updated April 26, 2026
| Specification | DuroMax XP12000HX | Westinghouse WGen11500DFc |
|---|---|---|
| General | ||
| Product type | Generator | Generator |
| Fuel | Dual-Fuel | Dual-Fuel |
| Inverter | No | No |
| Parallel capable | No | No |
| RV ready | Yes | No |
| Running watts | 9500 W | Winner: Winner: 11500 W |
| Starting watts | 12000 W | Winner: Winner: 14500 W |
| Noise (lower limit) | Winner: Winner: 74 dB | Winner: Winner: 74 dB |
| Weight | Winner: Winner: 230 lbs | Winner: Winner: 230 lbs |
| Run time @50% load | 9 h | Winner: Winner: 9.5 h |
| Run time @25% load | 19 h | 19 h |
| Fuel tank | 8.3 gal | 9.5 gal |
| Fuel gauge | Yes | Yes |
| Approx. dimensions (L × W × H) | 29 x 30 x 26 | 28.9 x 29.6 x 26.9 |
| Electrical | ||
| Voltage (AC) | 120/240 | 120/240 |
| Voltage (DC) | Not available | 5 |
| GFCI outlets | Yes | Yes |
| Covered outlets | No | Yes |
| Automatic Voltage Regulation | Yes | Yes |
| THD | Not available | ≤5% % |
| Engine | ||
| Engine | 457 cc OHV 4-stroke, cast iron sleeve | 550 cc 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 | 11500 W |
| Starting watts | 12000 W | 14500 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 | 9.5 h |
| Run time @25% load | 19 h | 19 h |
| Propane | Not available | Not available |
| Running watts | 9025 W | 10500 W |
| Starting watts | 11400 W | 13500 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 | 7 h |
| Run time @25% load | 7 h | Not available |
| Other | ||
| Data center | Not available | Not available |
| Indicators | true | false |
| Compliance | CARB, EPA | EPA, ANSI/PGMA G300-2023 |
| Security | Not available | Not available |
| Spark arrestor | Yes | Yes |
| Neutral | Not available | Bonded to frame |
| UPC | 811640016227 | 850060639814 |
| Core / High-priority specs | ||
| Running Watts (Gasoline) | 9500 | 11500 |
| Running Watts (Propane) | 9025 | 10500 |
| Starting Watts (Gasoline) | 12000 | 14500 |
| Starting Watts (Propane) | 11400 | 13500 |
| Runtime @ 50% Load (Gasoline) | 9 | 9.5 |
| Runtime @ 50% Load (Propane) | 3.5 | 7 |
| Runtime @ 25% Load (Gasoline) | 19 | 19 |
| 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 | 550 cc OHV 4-stroke, Cast iron sleeve |
| Engine Displacement | 457 | 550 |
| Cylinder Sleeve | Cast iron sleeve | Cast iron sleeve |
| Alternator Winding Material | Copper windings | Copper windings |
| Runtime & fuel system | ||
| Runtime @ 25% Load (Gasoline) | 19 | 19 |
| Runtime @ 50% Load (Gasoline) | 9 | 9.5 |
| Runtime @ 50% Load (Propane) | 3.5 | 7 |
| Safety & compliance | ||
| Overload Protection System | Low oil and overload protection | Low oil and overload protection |
| Low Oil Protection | Yes | Yes |
| Carbon Monoxide Monitoring | Yes | Yes |
| Included equipment | ||
| Starting Components | Recoil, Electric | Not available |
| Fuel Connection Components | Not available | Propane hose |
| 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 | Not available |
| Commercial Warranty | 5 | Not available |
| 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 WGen11500DFc is a dual fuel portable generator designed for reliable power supply during emergencies or outdoor use. It offers 14,500 peak watts and 11,500 running watts on gasoline, and 13,500 peak watts and 10,500 running watts on propane. Equipped with a 550cc 4-Stroke OHV engine, it features a push-button electric start, remote start capability, and a CO sensor for safety. |
- Most PowerfulWestinghouse WGen11500DFc11500W running
- QuietestDuroMax XP12000HX74 dB
- Longest RuntimeWestinghouse WGen11500DFc9.5h at 50% load


