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Select up to 4 generators to compare specs, power output, noise levels, runtime and more. Your compare URL is shareable.
- DuroMax XP11000iH
- Powerhorse 2500i
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 XP11000iH | Powerhorse 2500i |
|---|---|---|
| General | ||
| Product type | Generator | Generator |
| Fuel | Dual-Fuel | Gasoline |
| Inverter | Yes | Yes |
| Parallel capable | Yes | Yes |
| RV ready | Yes | No |
| Running watts | Winner: Winner: 9000 W | 1800 W |
| Starting watts | Winner: Winner: 11000 W | 2500 W |
| Noise (lower limit) | Winner: Winner: 61 dB | 62 dB |
| Weight | 216 lbs | Winner: Winner: 48.3 lbs |
| Run time @50% load | 9 h | Winner: Winner: 9.5 h |
| Run time @25% load | 18 h | 10.5 h |
| Fuel tank | 7.1 gal | 1.2 gal |
| Fuel gauge | Yes | No |
| Approx. dimensions (L × W × H) | 26.2 x 25 x 29.6 | 20.4 x 12.5 x 18.3 |
| Electrical | ||
| Voltage (AC) | 120/240 | 120 |
| Voltage (DC) | 48-58 | Not available |
| GFCI outlets | Yes | No |
| Covered outlets | Yes | Yes |
| Automatic Voltage Regulation | Yes | Yes |
| THD | 3 % | 3 % |
| Engine | ||
| Engine | 459 cc OHV 4-stroke | 80 cc OHV 4-stroke |
| Alternator | Not available | Not available |
| Starting system | Recoil, Electric, Remote | Recoil |
| Warranty | ||
| Warranty | 5 years | 2 years |
| Power by fuel | ||
| Gasoline | Not available | Not available |
| Running watts | 9000 W | Not available |
| Starting watts | 11000 W | 2500 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 | 9 h | 9.5 h |
| Run time @25% load | 18 h | 10.5 h |
| Propane | Not available | Not available |
| Running watts | 8550 W | Not available |
| Starting watts | 10450 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 | 4 h | Not available |
| Run time @25% load | 8 h | Not available |
| Other | ||
| Data center | Not available | Not available |
| Indicators | true | true |
| Compliance | EPA | EPA, ANSI/PGMA G300-2023 |
| Security | Not available | Not available |
| Spark arrestor | Yes | Yes |
| Neutral | true | Floating |
| UPC | 811640017033 | 840321763969 |
| Core / High-priority specs | ||
| Running Watts (Gasoline) | 9000 | Not available |
| Running Watts (Propane) | 8550 | Not available |
| Starting Watts (Gasoline) | 11000 | 2500 |
| Starting Watts (Propane) | 10450 | Not available |
| Runtime @ 50% Load (Gasoline) | 9 | 9.5 |
| Runtime @ 50% Load (Propane) | 4 | Not available |
| Runtime @ 25% Load (Gasoline) | 18 | 10.5 |
| Runtime @ 25% Load (Propane) | 8 | Not available |
| AC Outlet Types | 2x Duplex 120V 20A (5-20R) GFCI; 1x 120/240V 30A (L14-30R); 1x 120/240V 50A (14-50R) | 1x Duplex 120V 20A (5-20R); 1x 120V 30A (L5-30R) |
| Electrical & power | ||
| Frequency | 60 | 60 |
| Engine & construction | ||
| Engine Type | 459 cc OHV 4-stroke | 80 cc OHV 4-stroke |
| Engine Displacement | 459 | 80 |
| Engine Oil Type | 10W-30 | Not available |
| Runtime & fuel system | ||
| Runtime @ 25% Load (Gasoline) | 18 | 10.5 |
| Runtime @ 50% Load (Gasoline) | 9 | 9.5 |
| Runtime @ 50% Load (Propane) | 4 | Not available |
| Safety & compliance | ||
| Overload Protection System | Low oil and overload protection | Low oil and overload protection, CO monitoring |
| Low Oil Protection | Yes | Yes |
| Carbon Monoxide Monitoring | Yes | Yes |
| Included equipment | ||
| Starting Components | Recoil, Electric, Remote | Not available |
| Included Accessories | Funnel, tool kit, key fob, battery charger, propane hose, battery charging cables, and battery | Funnel and tool kit |
| Warranty & identification | ||
| Commercial Warranty | 5 | 2 |
| Additional specs | ||
| Summary | The DuroMax XP11000iH is a 9,000-watt dual-fuel inverter generator built for home backup and jobsite power. Because it runs on either gasoline or propane, users can adapt to fuel availability rather than being locked into one source. The 11,000-watt peak output handles large appliances and power tools simultaneously, while the inverter technology keeps total harmonic distortion at just 3 percent. This matters for laptops, televisions, and other sensitive gear that can suffer damage from dirty power. At 61 decibels, the noise level sits between a normal conversation and a vacuum cleaner, making it tolerable in residential settings without constant ear protection. | The Powerhorse 2500i is a portable inverter generator delivering 2,500 surge watts and 1,800 rated watts, featuring a quiet 52dB operation, CO shutdown function, and parallel-ready design for increased power needs. |
- Most PowerfulDuroMax XP11000iH9000W running
- QuietestDuroMax XP11000iH61 dB
- Longest RuntimePowerhorse 2500i9.5h at 50% load
Where to buy
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DuroMax XP11000iH
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Powerhorse 2500i
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