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 XP13000HX
- Genmax GM15000ET
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 XP13000HX | Genmax GM15000ET |
|---|---|---|
| General | ||
| Product type | Generator | Generator |
| Fuel | Dual-Fuel | Tri-Fuel |
| Inverter | No | No |
| Parallel capable | No | No |
| RV ready | Yes | Yes |
| Running watts | 10500 W | Winner: Winner: 13000 W |
| Starting watts | 13000 W | Winner: Winner: 15000 W |
| Noise (lower limit) | Winner: Winner: 74 dB | 76 dB |
| Weight | Winner: Winner: 240 lbs | 242 lbs |
| Run time @50% load | 8.5 h | Winner: Winner: 11 h |
| Run time @25% load | 17 h | Not available |
| Fuel tank | 8.3 gal | 10.5 gal |
| Fuel gauge | Yes | Yes |
| Approx. dimensions (L × W × H) | 29 x 30 x 26 | 28 x 31.6 x 28.7 |
| Electrical | ||
| Voltage (AC) | 120/240V 60 Hz | 120/240 |
| Voltage (DC) | Not available | 12 |
| GFCI outlets | Yes | No |
| Covered outlets | No | Yes |
| Automatic Voltage Regulation | Yes | Yes |
| THD | Not available | 23 % |
| Engine | ||
| Engine | 500 cc OHV 4-stroke, cast iron sleeve | 520 cc OHV 4-stroke |
| Alternator | Not available | Not available |
| Starting system | Recoil, Electric | Recoil, Electric, Remote |
| Warranty | ||
| Warranty | 5 years | 1 years |
| Power by fuel | ||
| Gasoline | Not available | Not available |
| Running watts | 10500 W | 11000 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 | 8.5 h | 11 h |
| Run time @25% load | 17 h | Not available |
| Propane | Not available | Not available |
| Running watts | 9975 W | 13000 W |
| Starting watts | 12350 W | 13000 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 | 3.2 h | Not available |
| Run time @25% load | 6.5 h | Not available |
| Natural gas | Not available | Not available |
| Running watts | Not available | 12000 W |
| Starting watts | Not available | 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 |
| Other | ||
| Data center | Not available | Not available |
| Indicators | true | true |
| Compliance | CARB, EPA | EPA, ANSI/PGMA G300-2023 |
| Security | Not available | Not available |
| Spark arrestor | Yes | Yes |
| Neutral | Not available | Floating |
| UPC | 811640016234 | 760790901382 |
| Core / High-priority specs | ||
| Running Watts (Gasoline) | 10500 | 11000 |
| Running Watts (Propane) | 9975 | 13000 |
| Running Watts (Natural Gas) | Not available | 12000 |
| Starting Watts (Gasoline) | 13000 | 15000 |
| Starting Watts (Propane) | 12350 | 13000 |
| Starting Watts (Natural Gas) | Not available | 12000 |
| Runtime @ 50% Load (Gasoline) | 8.5 | 11 |
| Runtime @ 50% Load (Propane) | 3.2 | Not available |
| Runtime @ 25% Load (Gasoline) | 17 | Not available |
| Runtime @ 25% Load (Propane) | 6.5 | 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) | AC outlets3x Duplex 120V 20A (5-20R)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 | 520 |
| Cylinder Sleeve | Cast iron sleeve | Not available |
| Alternator Winding Material | Copper | Not available |
| Engine Oil Type | Not available | SAE 10W/30 |
| Runtime & fuel system | ||
| Runtime @ 25% Load (Gasoline) | 17 | Not available |
| Runtime @ 50% Load (Gasoline) | 8.5 | 11 |
| Runtime @ 50% Load (Propane) | 3.2 | 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 | ||
| Starting Components | Recoil, Electric | Recoil starter; Electric starter; Remote starter |
| Included Accessories | Funnel, tool kit, propane hose, battery, and wheel kit | Oil, funnel, tool kit, key fob, battery charger, natural gas hose with NPT adapter, propane hose, cover, neutral bonding plug, battery, and wheel kit |
| Warranty & identification | ||
| Commercial Warranty | 5 | 1 |
| Additional specs | ||
| Summary | The DuroMax XP13000HX is a 10,500-watt dual-fuel generator built to power job sites, home backup systems, and RV setups without compromise. Running on gasoline or propane, this unit delivers 13,000 peak watts, enough to start large air compressors, well pumps, and multiple power tools simultaneously. The 500cc OHV engine with cast iron sleeve handles sustained loads that would overwhelm smaller portables. At 74 decibels, it operates quietly enough for residential neighborhoods, though the 240-pound frame demands serious planning for transport and storage. | The Genmax GM15000ET is a 13,000-watt tri-fuel generator built for serious power demands. With 13,000 running watts and 15,000 starting watts, this unit can handle whole-house backup scenarios, including central air conditioning, refrigerators, well pumps, and multiple circuits running simultaneously. Because it runs on gasoline, propane, or natural gas, owners gain real flexibility during emergencies when one fuel source might be unavailable or during extended outages when tapping into a home natural gas line eliminates refueling trips entirely. |
- Most PowerfulGenmax GM15000ET13000W running
- QuietestDuroMax XP13000HX74 dB
- Longest RuntimeGenmax GM15000ET11h at 50% load
Where to buy
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DuroMax XP13000HX
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Genmax GM15000ET
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