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- Westinghouse WGen14500TFc
- 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 | Westinghouse WGen14500TFc | Cat RP12000 E |
|---|---|---|
| General | ||
| Product type | Generator | Generator |
| Fuel | Tri-Fuel | Gasoline |
| Inverter | No | No |
| Parallel capable | No | No |
| RV ready | No | Yes |
| Running watts | Winner: Winner: 14500 W | 12000 W |
| Starting watts | Winner: Winner: 18000 W | 15000 W |
| Noise (lower limit) | Winner: Winner: 74 dB | 0 dB |
| Weight | Winner: Winner: 348.3 lbs | 350 lbs |
| Run time @50% load | 10 h | Winner: Winner: 11.7 h |
| Run time @25% load | 12 h | Not available |
| Fuel tank | 10.5 gal | 13.2 gal |
| Fuel gauge | Yes | Yes |
| Approx. dimensions (L × W × H) | 30.3 x 34.9 x 34.3 | 35.7 x 32.7 x 35.8 |
| Electrical | ||
| Voltage (AC) | 120/240 | 120/240 |
| Voltage (DC) | 5 | 12 |
| GFCI outlets | Yes | Yes |
| Covered outlets | Yes | Yes |
| Automatic Voltage Regulation | Yes | Yes |
| THD | 5 % | 5 % |
| Engine | ||
| Engine | 713 cc OHV V-Twin, cast iron sleeve | 670 cc Rato OHV V-Twin |
| Alternator | Not available | Not available |
| Starting system | Electric, Remote | Electric |
| Warranty | ||
| Warranty | 3 years | 2 years |
| Power by fuel | ||
| Gasoline | Not available | Not available |
| Running watts | 14500 W | 12000 W |
| Starting watts | 18000 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 h | 11.7 h |
| Run time @25% load | 12 h | Not available |
| Natural gas | Not available | Not available |
| Running watts | 11600 W | Not available |
| Starting watts | 14400 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 | 13000 W | Not available |
| Starting watts | 16000 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 | Not available |
| Run time @25% load | 4 h | Not available |
| Other | ||
| Data center | Not available | Not available |
| Indicators | false | false |
| Compliance | EPA, ANSI/PGMA G300-2023 | CARB, EPA |
| Security | Not available | Not available |
| Spark arrestor | Yes | Yes |
| Neutral | true | true |
| UPC | 850032657792 | 815683023891 |
| Core / High-priority specs | ||
| Running Watts (Gasoline) | 14500 | 12000 |
| Running Watts (Propane) | 13000 | Not available |
| Running Watts (Natural Gas) | 11600 | Not available |
| Starting Watts (Gasoline) | 18000 | 15000 |
| Starting Watts (Propane) | 16000 | Not available |
| Starting Watts (Natural Gas) | 14400 | Not available |
| Runtime @ 50% Load (Gasoline) | 10 | 11.7 |
| Runtime @ 50% Load (Propane) | 3.5 | Not available |
| Runtime @ 25% Load (Gasoline) | 12 | Not available |
| Runtime @ 25% Load (Propane) | 4 | 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) 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 | 713 cc OHV V-Twin, cast iron sleeve | 670 cc Rato OHV V-Twin |
| Engine Displacement | 713 | 670 |
| Cylinder Sleeve | cast iron sleeve | Not available |
| Alternator Winding Material | Copper windings | Not available |
| Engine Oil Type | SAE 10W-30 | Not available |
| Runtime & fuel system | ||
| Runtime @ 25% Load (Gasoline) | 12 | Not available |
| Runtime @ 50% Load (Gasoline) | 10 | 11.7 |
| Runtime @ 50% Load (Propane) | 3.5 | 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 | ||
| Mobility Components | Yes | Not available |
| Starting Components | Electric, Remote | Battery, Battery Charger, Wheel Kit |
| Fuel Connection Components | Natural gas hose with NPT adapter, propane hose | Not available |
| 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, battery charger, battery, and wheel kit |
| Warranty & identification | ||
| Commercial Warranty | 3 | Not available |
| Part Number | Not available | 502-3700 |
| Additional specs | ||
| Summary | The Westinghouse WGen14500TFc is a tri-fuel portable generator offering 18,000 peak watts and 14,500 running watts, suitable for home backup power. | 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 PowerfulWestinghouse WGen14500TFc14500W running
- QuietestWestinghouse WGen14500TFc74 dB
- Longest RuntimeCat RP12000 E11.7h at 50% load
Where to buy
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Westinghouse WGen14500TFc
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Cat RP12000 E
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