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 XP12000HX
- Pulsar PGX5250BiXCO
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 XP12000HX | Pulsar PGX5250BiXCO |
|---|---|---|
| General | ||
| Product type | Generator | Generator |
| Fuel | Dual-Fuel | Dual-Fuel |
| Inverter | No | Yes |
| Parallel capable | No | No |
| RV ready | Yes | Yes |
| Running watts | Winner: Winner: 9500 W | 4000 W |
| Starting watts | Winner: Winner: 12000 W | 5250 W |
| Noise (lower limit) | 74 dB | Winner: Winner: 70 dB |
| Weight | 230 lbs | Winner: Winner: 64 lbs |
| Run time @50% load | Winner: Winner: 9 h | 6 h |
| Run time @25% load | 19 h | Not available |
| Fuel tank | 8.3 gal | 2.1 gal |
| Fuel gauge | Yes | Yes |
| Approx. dimensions (L × W × H) | 29 x 30 x 26 | 17.5 x 14.9 x 19.5 |
| Electrical | ||
| Voltage (AC) | 120/240 | 120 |
| Voltage (DC) | Not available | 12 |
| GFCI outlets | Yes | No |
| Covered outlets | No | Yes |
| Automatic Voltage Regulation | Yes | Yes |
| THD | Not available | Not available |
| Engine | ||
| Engine | 457 cc OHV 4-stroke, cast iron sleeve | 223 cc OHV 4-stroke |
| Alternator | Not available | Not available |
| Starting system | Recoil, Electric | Recoil |
| Warranty | ||
| Warranty | 5 years | 3 years |
| Power by fuel | ||
| Gasoline | Not available | Not available |
| Running watts | 9500 W | 4000 W |
| Starting watts | 12000 W | 5250 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 | 6 h |
| Run time @25% load | 19 h | Not available |
| Propane | Not available | Not available |
| Running watts | 9025 W | 3600 W |
| Starting watts | 11400 W | 4700 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 | 3.5 h | 10 h |
| Run time @25% load | 7 h | 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 | true |
| UPC | 811640016227 | 814726029852 |
| Core / High-priority specs | ||
| Running Watts (Gasoline) | 9500 | 4000 |
| Running Watts (Propane) | 9025 | 3600 |
| Starting Watts (Gasoline) | 12000 | 5250 |
| Starting Watts (Propane) | 11400 | 4700 |
| Runtime @ 50% Load (Gasoline) | 9 | 6 |
| Runtime @ 50% Load (Propane) | 3.5 | 10 |
| Runtime @ 25% Load (Gasoline) | 19 | Not available |
| Runtime @ 25% Load (Propane) | 7 | Not available |
| AC Outlet Types | 2x Duplex 120V 20A (5-20R); 1x 120V 30A (L5-30R); 1x 120/240V 30A (L14-30R); 1x 120/240V 50A (14-50R) | 1x Duplex 120V 20A (5-20R) 1x 120V 30A (TT-30R) |
| Electrical & power | ||
| Frequency | 60 | 60 |
| Engine & construction | ||
| Engine Type | OHV 4-stroke | Not available |
| Engine Displacement | 457 | 223 |
| Cylinder Sleeve | Cast iron sleeve | Not available |
| Alternator Winding Material | Copper windings | Not available |
| Engine Oil Type | Not available | 10W-30 |
| Runtime & fuel system | ||
| Runtime @ 25% Load (Gasoline) | 19 | Not available |
| Runtime @ 50% Load (Gasoline) | 9 | 6 |
| Runtime @ 50% Load (Propane) | 3.5 | 10 |
| Safety & compliance | ||
| Overload Protection System | Low oil and overload protection | Low oil and overload protection |
| Low Oil Protection | Yes | Yes |
| Carbon Monoxide Monitoring | Yes | Yes |
| Included equipment | ||
| Starting Components | Recoil, Electric | Oil, funnel, tool kit, and propane hose |
| Included Accessories | Funnel, tool kit, propane hose, battery, and wheel kit | Oil, funnel, tool kit, and propane hose |
| Warranty & identification | ||
| Residential Warranty | 5 | Not available |
| Commercial Warranty | 5 | Not available |
| Additional specs | ||
| Summary | The DuroMax XP12000HX is a 9,500-watt dual-fuel generator built for job sites, home backup, and RV use. Its 12,000-watt peak capacity handles the startup surge of air conditioners, compressors, and welders, while the 9,500-watt running output sustains multiple heavy tools or household circuits simultaneously. Gasoline delivers 19 hours of runtime at quarter load, making this unit suitable for extended outages or multi-day events without constant refueling.
The dual-fuel design means users can switch between gasoline and propane depending on fuel availability and storage constraints. On propane at 25% load, runtime drops to 7 hours, trading endurance for cleaner emissions and longer shelf life. The 457 cc cast iron engine is built for durability on job sites where generators take abuse. This is a stationary workhorse, not a portable grab-and-go unit. | The Pulsar PGX5250BiXCO 5250W Dual Fuel Inverter Generator is a reliable power solution for emergency power, off-grid needs, RV trips, and jobsite use. With dual fuel capability, it operates on either gasoline or propane, giving you flexibility when fuel availability changes. Its advanced inverter technology delivers clean, stable electricity that’s safe for sensitive electronics such as laptops, mobile devices, and televisions. |
- Most PowerfulDuroMax XP12000HX9500W running
- QuietestPulsar PGX5250BiXCO70 dB
- Longest RuntimeDuroMax XP12000HX9h at 50% load
Where to buy
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DuroMax XP12000HX
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Pulsar PGX5250BiXCO
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