
Westinghouse WGen11500TFc vs DuroMax XP15000HXT+
Comparing two tri-fuel heavyweights: the Westinghouse WGen11500TFc and DuroMax XP15000HXT+. See which high-wattage generator fits your backup power needs.
- DuroMax XP15000HXT+
- Westinghouse WGen11500TFc
Comparison Overview
These two tri-fuel conventional generators occupy similar territory, both targeting homeowners and professionals who need serious backup power with fuel flexibility. The DuroMax XP15000HXT+ edges ahead on raw output with 12,000 running watts and 15,000 starting watts, compared to the Westinghouse WGen11500TFc's 11,500 running watts and 14,500 starting watts. That 500-watt running difference could matter if you're powering multiple large appliances or tools simultaneously.
Both generators produce 74 dB of noise and weigh within a few pounds of each other (230 lbs for the Westinghouse, 237 lbs for the DuroMax), so neither has a meaningful advantage in portability or quiet operation. Where they diverge more noticeably is in runtime and warranty. The Westinghouse delivers 19 hours at 25% load, outpacing the DuroMax's 17.9 hours at the same load. However, the DuroMax pulls ahead at 50% load with 12 hours versus the Westinghouse's 9.5 hours. The DuroMax also comes with a 5-year warranty, giving it a significant edge over the Westinghouse's 3-year coverage.
If you value longer runtime under heavier loads and extended warranty protection, the DuroMax is the stronger pick. If you prioritize efficiency at lighter loads and a slightly lower weight, the Westinghouse deserves a closer look.
Key takeaways
- DuroMax XP15000HXT+ delivers 12,000 running watts versus Westinghouse's 11,500 running watts
- Westinghouse WGen11500TFc runs 19 hours at 25% load, beating DuroMax's 17.9 hours
- DuroMax lasts 12 hours at 50% load compared to Westinghouse's 9.5 hours
- DuroMax offers a 5-year warranty while Westinghouse provides 3 years
- Both produce 74 dB of noise and support gasoline, propane, and natural gas
- Westinghouse scores 7.08 overall versus DuroMax's 5.35 out of 10
Best use cases
Choose the Westinghouse WGen11500TFc if you expect your generator to spend most of its time running at lighter loads. Its 19-hour runtime at 25% load is excellent for overnight home backup situations where you're keeping essentials like a refrigerator, lights, and a sump pump running without drawing heavy current. The 11,500 running watts is still plenty for most whole-home backup scenarios, and at 230 pounds it's marginally easier to maneuver than the DuroMax. The Westinghouse also earned a higher overall score of 7.08 out of 10, which reflects well on its combination of features, build quality, and value.
Choose the DuroMax XP15000HXT+ if you need every watt you can get or plan to run the generator under sustained moderate to heavy loads. Its 12 hours at 50% load is notably better than the Westinghouse's 9.5 hours, which makes a real difference during extended power outages when you're running an air conditioner, well pump, or multiple power tools on a job site. The extra 500 running watts gives you more headroom for adding loads without worrying about tripping the breaker. The 5-year warranty is also a meaningful advantage, especially for a machine in this price class. If long-term peace of mind matters to you, that extra two years of coverage adds real value.
Both generators offer tri-fuel capability (gasoline, propane, and natural gas), so fuel flexibility is a wash. Neither is an inverter generator, meaning sensitive electronics like laptops should be plugged in through a surge protector. For pure home backup or job site duty where clean power isn't critical, both are well suited.
Verdict & recommendation
If your priority is maximum wattage, better runtime under real working loads, and a longer warranty, the DuroMax XP15000HXT+ is the more practical choice. If you lean toward lighter-load efficiency, slightly easier handling, and a generator that scores higher on overall quality metrics, the Westinghouse WGen11500TFc is a compelling option. The differences between these two are real but not dramatic. Both are capable tri-fuel generators built for serious backup power. Your decision should come down to how hard you plan to push the generator on a regular basis and how much weight you place on warranty length versus overall refinement.
Last updated March 12, 2026
| Specification | DuroMax XP15000HXT+ | Westinghouse WGen11500TFc |
|---|---|---|
| General | ||
| Product type | Generator | Generator |
| Fuel | Tri-Fuel | Tri-Fuel |
| Inverter | No | No |
| Parallel capable | No | No |
| RV ready | Yes | No |
| Running watts | Winner: Winner: 12000 W | 11500 W |
| Starting watts | Winner: Winner: 15000 W | 14500 W |
| Noise (lower limit) | Winner: Winner: 74 dB | Winner: Winner: 74 dB |
| Weight | 237 lbs | Winner: Winner: 230 lbs |
| Run time @50% load | Winner: Winner: 12 h | 9.5 h |
| Run time @25% load | 17.9 h | 19 h |
| Fuel tank | 10.6 gal | 9.5 gal |
| Fuel gauge | Yes | Yes |
| Approx. dimensions (L × W × H) | 29.5 x 28 x 26 | 28.9 x 29.6 x 26.9 |
| Electrical | ||
| Voltage (AC) | 120/240V 60 Hz | 120/240 |
| Voltage (DC) | Not available | 5 |
| GFCI outlets | Yes | Yes |
| Covered outlets | Yes | Yes |
| Automatic Voltage Regulation | Yes | Yes |
| THD | <5% % | <5% % |
| Engine | ||
| Engine | 500 cc OHV 4-stroke, cast iron sleeve | 550 cc OHV 4-stroke, cast iron sleeve |
| Alternator | Not available | Not available |
| Starting system | Recoil, Electric, Remote | Recoil, Electric, Remote |
| Warranty | ||
| Warranty | 5 years | 3 years |
| Power by fuel | ||
| Gasoline | Not available | Not available |
| Running watts | 12000 W | 11500 W |
| Starting watts | 15000 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 | 12 h | 9.5 h |
| Run time @25% load | 17.9 h | 19 h |
| Natural gas | Not available | Not available |
| Running watts | 10500 W | 9500 W |
| Starting watts | 13000 W | 12000 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 | Not available | Not available |
| Run time @25% load | Not available | Not available |
| Propane | Not available | Not available |
| Running watts | 11400 W | 10500 W |
| Starting watts | 14250 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 | 2.8 h | Not available |
| Run time @25% load | 4.1 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 | true |
| UPC | 811640017156 | 850032657457 |
| Core / High-priority specs | ||
| Running Watts (Gasoline) | 12000 | 11500 |
| Running Watts (Propane) | 11400 | 10500 |
| Running Watts (Natural Gas) | 10500 | 9500 |
| Starting Watts (Gasoline) | 15000 | 14500 |
| Starting Watts (Propane) | 14250 | 13500 |
| Starting Watts (Natural Gas) | 13000 | 12000 |
| Runtime @ 50% Load (Gasoline) | 12 | 9.5 |
| Runtime @ 50% Load (Propane) | 2.8 | Not available |
| Runtime @ 25% Load (Gasoline) | 17.9 | 19 |
| Runtime @ 25% Load (Propane) | 4.1 | Not available |
| AC Outlet Types | 2x Duplex 120V 20A (5-20R) GFCI; 2x 120/240V 50A (14-50R) | 2x Duplex 120V 20A (5-20R) GFCI; 1x 120/240V 30A (L14-30R); 1x 120/240V 50A (14-50R) |
| Electrical & power | ||
| Frequency | 60 | 60 |
| Engine & construction | ||
| Engine Type | OHV 4-stroke, cast iron sleeve | OHV 4-stroke |
| Engine Displacement | 500 | 550 |
| Cylinder Sleeve | cast iron sleeve | cast iron sleeve |
| Alternator Winding Material | Copper windings | Copper |
| Engine Oil Type | 10W-30 | 10W-30 |
| Runtime & fuel system | ||
| Runtime @ 25% Load (Gasoline) | 17.9 | 19 |
| Runtime @ 50% Load (Gasoline) | 12 | 9.5 |
| Runtime @ 50% Load (Propane) | 2.8 | Not available |
| Safety & compliance | ||
| Overload Protection System | Low oil and overload protection, CO monitoring | Low oil and overload protection |
| Low Oil Protection | Yes | Yes |
| Carbon Monoxide Monitoring | Yes | Yes |
| Included equipment | ||
| Included Accessories | Oil, funnel, tool kit, key fob, battery charger, natural gas hose with NPT adapter, propane hose, battery, and wheel kit | Oil, funnel, tool kit, key fob, battery charger, natural gas hose with NPT adapter, propane hose, battery, and wheel kit |
| Warranty & identification | ||
| Residential Warranty | 5 | Not available |
| Commercial Warranty | 5 | 3 |
| Additional specs | ||
| Summary | The DuroMax XP15000HXT+ is a 12,000-watt tri-fuel generator built for serious backup power and job site work. Running on gasoline, propane, or natural gas, it delivers 15,000 peak watts and 12,000 running watts, enough to power multiple heavy loads simultaneously like refrigerators, air conditioners, and construction tools. The tri-fuel flexibility means users can choose the most available or cost-effective fuel source for their situation. This is a stationary workhorse, not a portable grab-and-go unit. At 237 pounds with a 29.5 x 28 x 26 inch footprint, it requires permanent placement or serious logistics to move. The included wheel kit helps, but this generator is built to stay put once deployed. | The Westinghouse WGen11500TFc is a versatile tri-fuel portable generator capable of operating on gasoline, propane, or natural gas. It delivers up to 14,500 peak watts and 11,500 running watts on gasoline, making it suitable for home backup, job sites, or recreational use. The generator features a 550cc 4-Stroke OHV engine, electric start with remote key fob, and a CO sensor for safety. It offers a runtime of up to 19 hours on a 9.5-gallon fuel tank and includes multiple outlets for various applications. |
- Most PowerfulDuroMax XP15000HXT+12000W running
- QuietestDuroMax XP15000HXT+74 dB
- Longest RuntimeDuroMax XP15000HXT+12h at 50% load


