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.
- DuroMax XP13000EH
- 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 | DuroMax XP13000EH | Cat RP12000 E |
|---|---|---|
| General | ||
| Product type | Generator | Generator |
| Fuel | Dual-Fuel | Gasoline |
| Inverter | No | No |
| Parallel capable | No | No |
| RV ready | Yes | Yes |
| Running watts | 10500 W | Winner: Winner: 12000 W |
| Starting watts | 13000 W | Winner: Winner: 15000 W |
| Noise (lower limit) | Winner: Winner: 74 dB | 0 dB |
| Weight | Winner: Winner: 234 lbs | 350 lbs |
| Run time @50% load | 8 h | Winner: Winner: 11.7 h |
| Run time @25% load | 17 h | Not available |
| Fuel tank | 8.3 gal | 13.2 gal |
| Fuel gauge | Yes | Yes |
| Approx. dimensions (L × W × H) | 29 x 30 x 26 | 35.7 x 32.7 x 35.8 |
| Electrical | ||
| Voltage (AC) | 120/240V 60 Hz | 120/240 |
| Voltage (DC) | 12 | 12 |
| GFCI outlets | Yes | Yes |
| Covered outlets | No | Yes |
| Automatic Voltage Regulation | Yes | Yes |
| THD | 12 % | 5 % |
| Engine | ||
| Engine | 500 cc DuroMax OHV 4-stroke, cast iron sleeve | 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 | 10500 W | 12000 W |
| Starting watts | 13000 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 | 8 h | 11.7 h |
| Run time @25% load | 17 h | Not available |
| Propane | Not available | Not available |
| Running watts | 9975 W | Not available |
| Starting watts | Not available | 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 h | Not available |
| Run time @25% load | Not available | Not available |
| Other | ||
| Data center | Not available | Not available |
| Indicators | true | false |
| Compliance | CARB, EPA | CARB, EPA |
| Security | Not available | Not available |
| Spark arrestor | Yes | Yes |
| Neutral | Not available | true |
| UPC | 811640015725 | 815683023891 |
| Core / High-priority specs | ||
| Running Watts (Gasoline) | 10500 | 12000 |
| Running Watts (Propane) | 9975 | Not available |
| Starting Watts (Gasoline) | 13000 | 15000 |
| Runtime @ 50% Load (Gasoline) | 8 | 11.7 |
| Runtime @ 50% Load (Propane) | 3 | Not available |
| Runtime @ 25% Load (Gasoline) | 17 | Not available |
| AC Outlet Types | 1x Duplex 120V 20A (5-20R); 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 | OHV 4-stroke, cast iron sleeve | 670 cc Rato OHV V-Twin |
| Engine Displacement | 500 | 670 |
| Cylinder Sleeve | cast iron sleeve | Not available |
| Alternator Winding Material | Copper | Not available |
| Engine Oil Type | 10W-30 | Not available |
| Runtime & fuel system | ||
| Runtime @ 25% Load (Gasoline) | 17 | Not available |
| Runtime @ 50% Load (Gasoline) | 8 | 11.7 |
| Runtime @ 50% Load (Propane) | 3 | Not available |
| Safety & compliance | ||
| Overload Protection System | Not available | Low oil and overload protection |
| Low Oil Protection | Yes | Yes |
| Carbon Monoxide Monitoring | No | No |
| Included equipment | ||
| Mobility Components | Yes | Not available |
| Starting Components | Not available | Battery, Battery Charger, Wheel Kit |
| Included Accessories | Funnel, tool kit, propane hose, battery charging cables, 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 DuroMax XP13000EH is a 10,500-watt dual-fuel generator built to handle serious backup power demands. Running on gasoline or propane, it delivers enough sustained output to power multiple household appliances simultaneously, including refrigerators, water heaters, and air conditioning units during extended outages. The 13,000-watt peak capacity means it can start high-inrush devices like compressors and pumps without strain. This wattage class sits at the threshold between portable and semi-stationary power, making it suitable for homeowners who need whole-home backup rather than just essential circuits. | 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
- QuietestDuroMax XP13000EH74 dB
- Longest RuntimeCat RP12000 E11.7h at 50% load
Where to buy
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DuroMax XP13000EH
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Cat RP12000 E
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