Compare Generators Side-by-Side
Select up to 4 generators to compare specs, power output, noise levels, runtime and more. Your compare URL is shareable.
- WEN TF1050iX
- Cat RP12000 E
Quick charts
Each chart uses its own Y-axis scale (so numbers are comparable within a chart).
Running watts
W
Starting watts
W
Noise
dB
Runtime @50%
h
Running watts by fuel
Shows how output changes across gasoline/propane/natural gas (when available).
| Specification | WEN TF1050iX | Cat RP12000 E |
|---|---|---|
| General | ||
| Product type | Generator | Generator |
| Fuel | Tri-Fuel | Gasoline |
| Inverter | Yes | No |
| Parallel capable | Yes | No |
| RV ready | Yes | Yes |
| Running watts | 8550 W | Winner: Winner: 12000 W |
| Starting watts | 10500 W | Winner: Winner: 15000 W |
| Noise (lower limit) | Winner: Winner: 66 dB | 0 dB |
| Weight | Winner: Winner: 209.4 lbs | 350 lbs |
| Run time @50% load | 10.5 h | Winner: Winner: 11.7 h |
| Run time @25% load | Not available | Not available |
| Fuel tank | 7.1 gal | 13.2 gal |
| Fuel gauge | Yes | Yes |
| Approx. dimensions (L × W × H) | 30.1 x 26.3 x 28.8 | 35.7 x 32.7 x 35.8 |
| Electrical | ||
| Voltage (AC) | 120/240 | 120/240 |
| Voltage (DC) | 5 | 12 |
| GFCI outlets | No | Yes |
| Covered outlets | Yes | Yes |
| Automatic Voltage Regulation | Yes | Yes |
| THD | 1.2 % | 5 % |
| Engine | ||
| Engine | 457 cc OHV 4-stroke | 670 cc Rato OHV V-Twin |
| Alternator | Not available | Not available |
| Starting system | Recoil, Electric | Electric |
| Warranty | ||
| Warranty | 3 years | 2 years |
| Power by fuel | ||
| Gasoline | Not available | Not available |
| Running watts | 8550 W | 12000 W |
| Starting watts | 10500 W | 15000 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 | 10.5 h | 11.7 h |
| Run time @25% load | Not available | Not available |
| Natural gas | Not available | Not available |
| Running watts | 7500 W | Not available |
| Starting watts | 8500 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 | Not available | Not available |
| Run time @25% load | Not available | Not available |
| Propane | Not available | Not available |
| Running watts | 8550 W | Not available |
| Starting watts | 9450 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 | 5.8 h | Not available |
| Run time @25% load | Not available | Not available |
| Other | ||
| Data center | Not available | Not available |
| Indicators | true | false |
| Compliance | EPA, ANSI/PGMA G300-2023 | CARB, EPA |
| Security | Not available | Not available |
| Spark arrestor | Yes | Yes |
| Neutral | true | true |
| UPC | Not available | 815683023891 |
| Core / High-priority specs | ||
| Running Watts (Gasoline) | 8550 | 12000 |
| Running Watts (Propane) | 8550 | Not available |
| Running Watts (Natural Gas) | 7500 | Not available |
| Starting Watts (Gasoline) | 10500 | 15000 |
| Starting Watts (Propane) | 9450 | Not available |
| Starting Watts (Natural Gas) | 8500 | Not available |
| Runtime @ 50% Load (Gasoline) | 10.5 | 11.7 |
| Runtime @ 50% Load (Propane) | 5.8 | Not available |
| AC Outlet Types | 1x Duplex 120V 20A (5-20R); 1x 120/240V 30A (L14-30R); 1x 120/240V 50A (14-50R) | 2x Duplex 120V 20A (5-20R) GFCI; 2x 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 | 670 cc Rato OHV V-Twin |
| Engine Displacement | 457 | 670 |
| Runtime & fuel system | ||
| Runtime @ 50% Load (Gasoline) | 10.5 | 11.7 |
| Runtime @ 50% Load (Propane) | 5.8 | 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 | Yes | No |
| Included equipment | ||
| Starting Components | Not available | Battery, Battery Charger, Wheel Kit |
| Included Accessories | Funnel, tool kit, battery charger, propane hose, and battery | Oil, funnel, tool kit, battery charger, battery, and wheel kit |
| Warranty & identification | ||
| Residential Warranty | 3 | Not available |
| Commercial Warranty | 3 | Not available |
| Part Number | Not available | 502-3700 |
| Additional specs | ||
| Summary | The WEN TF1050iX is an 8550-watt tri-fuel inverter generator that runs on gasoline, propane, or natural gas. This capacity sits at the threshold between mid-range jobsite power and whole-house backup. The inverter design delivers 1.2% THD, making it safe for laptops, televisions, and other sensitive electronics that would suffer damage from dirty power. Tri-fuel flexibility means you can match the available fuel source to your location or storage preference, though output varies by fuel type. On gasoline, the TF1050iX delivers its full 8550 running watts and 10500 starting watts. On propane, it maintains 8550 running watts but drops to 9450 starting watts. On natural gas, output falls to 7500 running watts and 8500 starting watts, a meaningful reduction if you depend on peak capacity. The 7.1-gallon fuel tank and 10.5-hour runtime at 50% load on gasoline mean you can run a moderate load overnight without refueling, though propane runtime drops to 5.8 hours at the same load. This generator bridges the gap between portable and stationary power, though its 209.4-pound weight requires serious planning for transport. | The Cat RP12000 E is a 12,000-watt gasoline generator built for job sites, construction crews, and homeowners who need sustained power for multiple heavy tools or appliances simultaneously. The 15,000-watt peak output handles startup surges from air compressors, circular saws, and welders without stalling. At 350 pounds, this is a stationary or semi-portable unit. It ships with a wheel kit, battery charger, and full tool set, meaning users can operate it immediately without additional purchases. |
- Most PowerfulCat RP12000 E12000W running
- QuietestWEN TF1050iX66 dB
- Longest RuntimeCat RP12000 E11.7h at 50% load
Where to buy
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WEN TF1050iX
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Cat RP12000 E
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