
Westinghouse WGen9500DFc vs DuroMax XP12000EH
Comparing two 9500-watt dual-fuel generators: the Westinghouse WGen9500DFc and DuroMax XP12000EH. See which fits your home backup or job site needs.
- DuroMax XP12000EH
- Westinghouse WGen9500DFc
Comparison Overview
The Westinghouse WGen9500DFc and DuroMax XP12000EH are remarkably similar on paper. Both deliver 9,500 running watts, operate on gasoline or propane, produce 74 dB of noise, and come with a 3-year warranty. The differences are subtle but worth understanding before you buy.
The Westinghouse edges ahead with a higher 12,500 starting watts compared to the DuroMax's 12,000 starting watts. That extra 500 watts of surge capacity can matter when you're starting multiple motor-driven appliances at once, like a well pump and an air conditioner. The WGen9500DFc is also about 12 pounds lighter at 212 lbs versus 224 lbs, which makes a small but real difference when moving the unit around.
Where the DuroMax fights back is runtime. At 25% load, the XP12000EH runs for an impressive 19 hours on a single tank, compared to 12 hours for the Westinghouse. That's a significant gap if you're running the generator overnight during a power outage and want to avoid refueling in the dark. At 50% load, both units deliver about 8 hours of runtime.
Buyers who prioritize peak starting power and a slightly more portable package may lean toward the Westinghouse, while those who value extended runtime at lighter loads will appreciate what the DuroMax offers.
Key takeaways
- Both deliver 9,500 running watts with dual-fuel gasoline and propane capability
- Westinghouse provides 12,500 starting watts versus DuroMax's 12,000 starting watts
- DuroMax runs 19 hours at 25% load, seven hours longer than the Westinghouse
- Westinghouse weighs 212 lbs, about 12 pounds lighter than the DuroMax at 224 lbs
- Both produce 74 dB of noise and include a 3-year warranty
- Westinghouse scores 7.54 overall compared to DuroMax's 5.77 out of 10
Best use cases
Choose the Westinghouse WGen9500DFc if you need to start heavy loads reliably. Its 12,500 starting watts give you a wider margin for kicking on large appliances simultaneously, which is especially useful for whole-home backup scenarios where a central air conditioner, refrigerator, and sump pump might all cycle on within seconds of each other. The lighter weight of 212 lbs also makes it a slightly better choice if you need to wheel the generator in and out of a garage or load it onto a truck bed for job site use. The Westinghouse also carries a notably higher overall score of 7.54 out of 10, reflecting stronger performance across multiple evaluation criteria.
Choose the DuroMax XP12000EH if long, uninterrupted runtime is your top concern. At 25% load, you get 19 hours per tank, which is seven hours more than the Westinghouse. For extended power outages where you're running just the essentials (lights, a fridge, phone chargers, and maybe a furnace blower), that difference means sleeping through the night without worrying about fuel. This makes the DuroMax particularly appealing for emergency preparedness in storm-prone areas where outages can stretch for days and fuel resupply may be uncertain.
Both generators are conventional (non-inverter) models, so neither is ideal for powering sensitive electronics without an external surge protector or power conditioner. Both run at 74 dB, which is roughly the volume of a vacuum cleaner, so noise is a wash. And both offer dual-fuel flexibility, letting you switch to propane when gasoline is hard to find or for cleaner, more stable long-term storage. For RV use, either will handle a 50-amp hookup, though their size and weight make them better suited to stationary setups than frequent travel.
Verdict & recommendation
These two generators share so much common ground that the decision comes down to a couple of key priorities. If your main concern is starting capacity and overall build quality, the Westinghouse WGen9500DFc is the stronger pick, with 500 more starting watts, a lighter frame, and a higher overall performance score. If you value marathon runtime at lighter loads and plan to use the generator primarily for extended outage coverage, the DuroMax XP12000EH's 19-hour runtime at 25% load is hard to ignore.
Neither is a bad choice. Both deliver 9,500 running watts of dual-fuel power with identical noise levels and warranty coverage. For most home backup buyers, the Westinghouse offers a more well-rounded package. For preppers and anyone in regions with long, unpredictable outages, the DuroMax's fuel efficiency at low loads could be the deciding factor.
Last updated March 30, 2026
| Specification | DuroMax XP12000EH | Westinghouse WGen9500DFc |
|---|---|---|
| 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 | 224 lbs | Winner: Winner: 212 lbs |
| Run time @50% load | Winner: Winner: 8 h | Winner: Winner: 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 | 120/240 |
| Voltage (DC) | 12 | Not available |
| GFCI outlets | Yes | Yes |
| Covered outlets | No | Yes |
| Automatic Voltage Regulation | Yes | Yes |
| THD | Not available | 23 % |
| Engine | ||
| Engine | 457 cc DuroMax 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 | 3 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 | 8 h | 8 h |
| Run time @25% load | 19 h | 12 h |
| Propane | Not available | Not available |
| Running watts | 8075 W | 8500 W |
| Starting watts | 10200 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 | 7 h |
| 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 | 811640014681 | 850011336663 |
| Core / High-priority specs | ||
| Running Watts (Gasoline) | 9500 | 9500 |
| Running Watts (Propane) | 8075 | 8500 |
| Starting Watts (Gasoline) | 12000 | 12500 |
| Starting Watts (Propane) | 10200 | 11200 |
| Runtime @ 50% Load (Gasoline) | 8 | 8 |
| Runtime @ 50% Load (Propane) | 3.5 | 7 |
| Runtime @ 25% Load (Gasoline) | 19 | 12 |
| Runtime @ 25% Load (Propane) | 7 | Not available |
| AC Outlet Types | 1x Duplex 120V 20A (5-20R) GFCI1x 120V 30A (L5-30R)1x 120/240V 30A (L14-30R)1x 120/240V 50A (14-50R) | 2x Duplex 120V 20A (5-20R) GFCI1x 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 |
| Engine Displacement | 457 | 457 |
| Cylinder Sleeve | cast iron sleeve | cast iron |
| 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) | 8 | 8 |
| Runtime @ 50% Load (Propane) | 3.5 | 7 |
| Controls & display | ||
| Display Type | Voltmeter | 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 | No | Yes |
| Included equipment | ||
| 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 | ||
| Commercial Warranty | 3 | 3 |
| Additional specs | ||
| Summary | The DuroMax XP12000EH is a 9,500-watt dual-fuel generator built around a 457 cc OHV 4-stroke engine with cast iron sleeves. This wattage class handles simultaneous operation of multiple household appliances, power tools, and RV systems. The dual-fuel capability means users can switch between gasoline and propane based on fuel availability and storage preferences. Gasoline delivers 9,500 running watts with an 8-hour runtime at 50% load. Propane reduces output to 8,075 running watts but extends runtime to 19 hours at 25% load, making it the better choice for extended backup scenarios where refueling frequency matters. The 12,000 peak watts handle motor inrush demands during startup of compressors, pumps, and air conditioning units. | The Westinghouse WGen9500DFc is a dual-fuel generator with a rated wattage of 9500 watts on gasoline and 8500 watts on propane, designed for versatile power needs. |
- Most PowerfulDuroMax XP12000EH9500W running
- QuietestDuroMax XP12000EH74 dB
- Longest RuntimeDuroMax XP12000EH8h at 50% load


