
Comparing the WEN DF1100X and DuroStar DS11000DX dual-fuel generators. Both deliver 11000 starting watts, but differ in runtime, noise, and warranty.
Both the WEN DF1100X and DuroStar DS11000DX are conventional dual-fuel generators sharing the same 11,000 starting watts, making them direct competitors for heavy-duty home backup and job site power. The most striking difference is noise: the DuroStar DS11000DX operates at 74 dB, while the WEN DF1100X is noticeably louder at 81 dB. That 7 dB gap is significant in real-world terms, roughly translating to the DuroStar sounding about half as loud to the human ear.
Running watts also favor the DuroStar, which delivers 9,000 running watts compared to the WEN's 8,300 running watts. That extra 700 watts of continuous power gives the DS11000DX more headroom for running multiple appliances simultaneously. The DuroStar also edges ahead in runtime, lasting about 9 hours at 50% load (and an impressive 19 hours at 25% load) versus the WEN's 8.5 hours at 50% load. Warranty coverage is another major differentiator: DuroStar backs its unit with a 5-year warranty, while WEN offers just 2 years.
The WEN DF1100X does have one clear advantage: weight. At 213.8 lbs, it's roughly 16 pounds lighter than the DuroStar's 230 lbs, which can matter when loading and unloading from a truck bed. Buyers who prioritize long-term peace of mind and quieter operation may lean toward the DuroStar, while those looking for a lighter, potentially more affordable option might prefer the WEN.
Choose the WEN DF1100X if you want a capable dual-fuel generator that's a bit easier to move around. At 213.8 lbs, it's the lighter of the two, which is a practical benefit if you're frequently transporting it between locations or lifting it into a vehicle. Its 8,300 running watts and 11,000 starting watts are still plenty for powering essential home circuits during an outage, running power tools on a job site, or supporting a food truck setup. If you're comfortable with a shorter warranty period and don't mind the higher noise output, the DF1100X gets the job done at this power tier. Just keep in mind that at 81 dB, it's loud enough that neighbors will definitely notice it running, so it's less ideal for residential areas with homes close together.
Choose the DuroStar DS11000DX if runtime, noise, and warranty matter most to you. The 19 hours of runtime at 25% load is outstanding for extended power outages, meaning you can run essential appliances overnight without refueling. The 9,000 running watts give you more continuous capacity, which is helpful if you're powering a well pump, refrigerator, window AC unit, and lights all at once. At 74 dB, it's meaningfully quieter than the WEN, making it a better fit for suburban neighborhoods or anywhere noise is a concern. The 5-year warranty is a standout feature that provides significantly more long-term protection. The tradeoff is the extra weight at 230 lbs, so plan on having a second person or a wheeled kit to help with transport. For whole-home backup duty where the generator stays mostly in one spot, that weight penalty is easy to overlook.
If your priority is long runtime, lower noise, and the confidence of a longer warranty, the DuroStar DS11000DX is the stronger pick. Its extra 700 running watts and 19-hour runtime at quarter load make it especially well suited for extended home backup situations where you need reliable, sustained power. The quieter operation is a genuine quality-of-life improvement for you and anyone nearby.
If you value a lighter unit that's easier to transport and you're less concerned about noise levels or warranty length, the WEN DF1100X remains a solid performer with the same peak starting power. Both generators offer the flexibility of dual-fuel operation, so you can run gasoline or propane depending on what's available. For most home backup buyers, the DuroStar's combination of runtime, noise, and warranty coverage will be hard to pass up, but the WEN is worth considering if portability and upfront cost are your deciding factors.
Last updated March 28, 2026


| Specification | DuroStar DS11000DX | WEN DF1100X |
|---|---|---|
| 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: 9000 W | 8300 W |
| Starting watts | Winner: Winner: 11000 W | Winner: Winner: 11000 W |
| Noise (lower limit) | Winner: Winner: 74 dB | 81 dB |
| Weight | 230 lbs | Winner: Winner: 213.8 lbs |
| Run time @50% load | Winner: Winner: 9 h | 8.5 h |
| Run time @25% load | 19 h | Not available |
| Fuel tank | 8.3 gal | 6.6 gal |
| Fuel gauge | Yes | Yes |
| Approx. dimensions (L × W × H) | 29 x 30 x 26 in | 27.3 x 20.6 x 21.9 in |
| Electrical | ||
| Voltage (AC) | 120/240V 60 Hz | 120/240V |
| Voltage (DC) | Not available | 12 |
| GFCI outlets | Yes | No |
| Covered outlets | No | No |
| Automatic Voltage Regulation | Yes | Yes |
| THD | Not available | 15 % |
| Engine | ||
| Engine | 457 cc OHV 4-stroke, cast iron sleeve | 457 cc OHV 4-stroke |
| Alternator | Not available | Not available |
| Starting system | Recoil, Electric | Not available |
| Warranty | ||
| Warranty | 5 years | 2 years |
| Power by fuel | ||
| Gasoline | Not available | Not available |
| Running watts | 9000 W | 8300 W |
| Starting watts | 11000 W | 11000 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 | 8.5 h |
| Run time @25% load | 19 h | Not available |
| Propane | Not available | Not available |
| Running watts | 8550 W | 7500 W |
| Starting watts | 10450 W | Not available |
| 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 | 3 h |
| Run time @25% load | 7 h | Not available |
| Other | ||
| Data center | Not available | Not available |
| Indicators | true | false |
| Compliance | CARB, EPA | EPA |
| Security | Not available | Not available |
| Spark arrestor | Yes | Yes |
| Neutral | Not available | Not available |
| UPC | 811640016722 | 44459911005 |
| Core / High-priority specs | ||
| Running Watts (Gasoline) | 9000 | 8300 |
| Running Watts (Propane) | 8550 | 7500 |
| Starting Watts (Gasoline) | 11000 | 11000 |
| Starting Watts (Propane) | 10450 | Not available |
| Runtime @ 50% Load (Gasoline) | 9 | 8.5 |
| Runtime @ 50% Load (Propane) | 3.5 | 3 |
| Runtime @ 25% Load (Gasoline) | 19 | Not available |
| Runtime @ 25% Load (Propane) | 7 | Not available |
| AC Outlet Types | 2x Duplex 120V 20A (5-20R) GFCI; 1x 120V 30A (L5-30R); 1x 120/240V 30A (L14-30R); 1x 120/240V 50A (14-50R) | 2x Duplex 120V 20A (5-20R) GFCI1x 120V 30A (L5-30R)1x 120/240V 30A (L14-30R) |
| Electrical & power | ||
| Frequency | 60 | 60 |
| Engine & construction | ||
| Engine Type | OHV 4-stroke, cast iron sleeve | OHV 4-stroke |
| Engine Displacement | 457 | 457 |
| Cylinder Sleeve | cast iron sleeve | Not available |
| Alternator Winding Material | Copper windings | Not available |
| Engine Oil Type | 10W-30 | Not available |
| Runtime & fuel system | ||
| Runtime @ 25% Load (Gasoline) | 19 | Not available |
| Runtime @ 50% Load (Gasoline) | 9 | 8.5 |
| Runtime @ 50% Load (Propane) | 3.5 | 3 |
| Safety & compliance | ||
| Overload Protection System | Low oil and overload protection, CO monitoring | Not available |
| Low Oil Protection | Yes | No |
| Carbon Monoxide Monitoring | Yes | Yes |
| Included equipment | ||
| Mobility Components | Wheel kit | Not available |
| Included Accessories | Funnel, tool kit, propane hose, battery, and wheel kit | Oil, propane hose, battery, and wheel kit |
| Additional specs | ||
| Summary | The DuroStar DS11000DX is a 9,000-watt dual fuel generator built around a 457cc OHV engine with cast iron sleeves. This wattage places it squarely in the home backup and light job site category. On gasoline, it runs 9 hours at half load and 19 hours at quarter load. On propane, runtime drops to 3.5 hours at half load and 7 hours at quarter load, making gasoline the practical choice for extended outages. The dual fuel option gives users flexibility when propane is more accessible or economical, though gasoline delivers longer operating windows per tank. At 74 dB, the noise level sits in the moderate range for this power class, meaning it will be audible but not prohibitively loud in residential settings. The 8.3-gallon fuel tank combined with the quarter-load runtime means users can stretch a single fill to nearly a full day of light operation. | The WEN DF1100X is an 8,300-watt dual-fuel generator that bridges gasoline and propane operation without sacrificing peak output. Its 11,000 starting watts handle equipment startup surges, making it suitable for jobsites, emergency backup, and extended outdoor work where fuel choice matters. |