
Comparing two tri-fuel heavyweights: the Westinghouse WGen14500TFc delivers more watts while the DuroMax XP15000HXT offers longer runtime and a better warranty.
The Westinghouse WGen14500TFc and DuroMax XP15000HXT are both tri-fuel conventional generators built for serious power demands, but they diverge in meaningful ways. The Westinghouse delivers 14,500 running watts and 18,000 starting watts, giving it a significant edge over the DuroMax's 12,000 running watts and 15,000 starting watts. That's roughly 20% more continuous power, which matters when you're running multiple high-draw appliances or tools simultaneously.
The DuroMax fights back with endurance and peace of mind. It runs for 17.9 hours at 25% load compared to the Westinghouse's 12 hours, and it comes with a 5-year warranty versus the Westinghouse's 3-year coverage. The DuroMax is also slightly quieter in relative terms, though at 78 dB versus 74 dB, neither qualifies as quiet. Both weigh in around 350 pounds, so portability is limited for either unit.
If you need the most raw power available from a tri-fuel generator, the Westinghouse is the stronger pick. If you value longer runtimes between refueling and want more warranty protection, the DuroMax deserves serious consideration.
Choose the Westinghouse WGen14500TFc if you need to power a large home during extended outages and want the headroom to run central air conditioning, a well pump, a refrigerator, and several other circuits at the same time. With 14,500 running watts, it can handle loads that would overwhelm most portable generators. It's also the better choice for job sites where multiple power tools, compressors, or welders need to run concurrently. At 74 dB, it's still loud, but noticeably less so than the DuroMax, which could matter if neighbors are nearby. The tradeoff is a shorter runtime of 12 hours at 25% load, meaning you'll be refueling more often during multi-day outages, and the 3-year warranty is modest for a generator in this price range.
Choose the DuroMax XP15000HXT if your power needs are substantial but don't quite require the Westinghouse's extra 2,500 running watts. Its 12,000 running watts still comfortably powers most homes, including air conditioning and essential circuits. Where the DuroMax really shines is runtime. At nearly 18 hours on a 25% load, you can sleep through the night without worrying about refueling. The 5-year warranty also provides meaningful long-term protection, especially for a machine you might only use during emergencies and want to trust when the time comes. The downside is that it's slightly heavier at 362 pounds and louder at 78 dB, and if you truly need every watt you can get, the lower output ceiling could be a limitation.
These two generators serve overlapping but slightly different priorities. If your main concern is maximum power output and you want to run the most demanding loads without worrying about capacity, the Westinghouse WGen14500TFc's 14,500 running watts give it a clear advantage. If you'd rather have longer runtime between fills and stronger warranty coverage, and 12,000 running watts is enough for your setup, the DuroMax XP15000HXT is the more practical long-term investment.
Both offer tri-fuel flexibility, letting you run on gasoline, propane, or natural gas depending on what's available. Neither is lightweight or quiet, so plan for a permanent or semi-permanent placement. For most whole-home backup scenarios, either generator will get the job done. Your decision should come down to whether you need more watts or more hours per tank.
Last updated October 9, 2026


| Specification | DuroMax XP15000HXT | Westinghouse WGen14500TFc |
|---|---|---|
| General | ||
| Product type | Generator | Generator |
| Fuel | Tri-Fuel | Tri-Fuel |
| Inverter | No | No |
| Parallel capable | No | No |
| RV ready | Yes | No |
| Running watts | 12000 W | Winner: Winner: 14500 W |
| Starting watts | 15000 W | Winner: Winner: 18000 W |
| Noise (lower limit) | 78 dB | Winner: Winner: 74 dB |
| Weight | 362 lbs | Winner: Winner: 348.3 lbs |
| Run time @50% load | Winner: Winner: 12 h | 10 h |
| Run time @25% load | 17.9 h | 12 h |
| Fuel tank | 13.2 gal | 10.5 gal |
| Fuel gauge | Yes | Yes |
| Approx. dimensions (L × W × H) | 36 x 33.2 x 32 | 30.3 x 34.9 x 34.3 |
| Electrical | ||
| Voltage (AC) | 120/240 | 120/240 |
| Voltage (DC) | Not available | 5 |
| GFCI outlets | Yes | Yes |
| Covered outlets | Yes | Yes |
| Automatic Voltage Regulation | Yes | Yes |
| THD | 12 % | 5 % |
| Engine | ||
| Engine | 670 cc OHV 4-stroke, cast iron sleeve | 713 cc OHV V-Twin, cast iron sleeve |
| Alternator | Not available | Not available |
| Starting system | Recoil, Electric, Remote | Electric, Remote |
| Warranty | ||
| Warranty | 5 years | 3 years |
| Power by fuel | ||
| Gasoline | Not available | Not available |
| Running watts | 12000 W | 14500 W |
| Starting watts | 15000 W | 18000 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 | 10 h |
| Run time @25% load | 17.9 h | 12 h |
| Natural gas | Not available | Not available |
| Running watts | 10260 W | 11600 W |
| Starting watts | 12825 W | 14400 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 | 13000 W |
| Starting watts | 14250 W | 16000 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 | 3.5 h |
| Run time @25% load | 4.1 h | 4 h |
| 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 | true | true |
| UPC | 811640016852 | 850032657792 |
| Core / High-priority specs | ||
| Running Watts (Gasoline) | 12000 | 14500 |
| Running Watts (Propane) | 11400 | 13000 |
| Running Watts (Natural Gas) | 10260 | 11600 |
| Starting Watts (Gasoline) | 15000 | 18000 |
| Starting Watts (Propane) | 14250 | 16000 |
| Starting Watts (Natural Gas) | 12825 | 14400 |
| Runtime @ 50% Load (Gasoline) | 12 | 10 |
| Runtime @ 50% Load (Propane) | 2.8 | 3.5 |
| Runtime @ 25% Load (Gasoline) | 17.9 | 12 |
| Runtime @ 25% Load (Propane) | 4.1 | 4 |
| AC Outlet Types | 5x 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) GFCI; 1x 120V 30A (L5-30R); 1x 120/240V 30A (L14-30R); 1x 120/240V 50A (14-50R) |
| Electrical & power | ||
| Frequency | 60 | 60 |
| Engine & construction | ||
| Engine Type | OHV 4-stroke | 713 cc OHV V-Twin, cast iron sleeve |
| Engine Displacement | 670 | 713 |
| Cylinder Sleeve | cast iron sleeve | cast iron sleeve |
| Alternator Winding Material | Copper windings | Copper windings |
| Engine Oil Type | 10W-30 | SAE 10W-30 |
| Runtime & fuel system | ||
| Runtime @ 25% Load (Gasoline) | 17.9 | 12 |
| Runtime @ 50% Load (Gasoline) | 12 | 10 |
| Runtime @ 50% Load (Propane) | 2.8 | 3.5 |
| 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 | ||
| Mobility Components | Yes | Yes |
| Starting Components | Recoil, Electric, Remote | Electric, Remote |
| Fuel Connection Components | Not available | Natural gas hose with NPT adapter, propane hose |
| Included Accessories | Funnel, tool kit, key fob, 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 | ||
| Commercial Warranty | Not available | 3 |
| Additional specs | ||
| Summary | The DuroMax XP15000HXT is a 12,000-watt tri-fuel generator built for stationary backup power and job site work. It runs on gasoline, propane, or natural gas, giving users flexibility to match fuel availability to their location. The 670cc OHV engine delivers 15,000 peak watts on startup, enough to handle the inrush demands of air conditioners, well pumps, and heavy power tools. At 12,000 running watts, it sustains refrigerators, furnaces, and multiple circuits simultaneously. This is a home-backup or construction-grade machine, not a portable camping unit. | The Westinghouse WGen14500TFc is a tri-fuel portable generator offering 18,000 peak watts and 14,500 running watts, suitable for home backup power. |