
DuroMax XP12000HX vs Pulsar G12KBN
Both deliver 9500 running watts dual-fuel, but DuroMax adds a 5-year warranty while Pulsar is lighter at 209 lb.
- DuroMax XP12000HX
- Pulsar G12KBN
Comparison Overview
These two are unusually close on core output: both are dual-fuel, non-inverter generators rated at 9500 running watts and 12000 starting watts, with a listed 74 dB noise level. That means either can handle serious home-backup loads (like a well pump plus fridge and lights) or power-hungry tools, but neither is the quiet, clean-power style people typically prefer for sensitive electronics or campground use.
The biggest real-world separator is ownership and portability. The DuroMax XP12000HX comes with a 5-year warranty, which matters if you expect frequent use or want longer-term peace of mind. The Pulsar G12KBN is lighter at 209 lb versus 230 lb, which is noticeable when rolling it over gravel or lifting a wheel over a threshold.
Runtime data is mixed: DuroMax lists 19 hours at 25% load and 9 hours at 50%, while Pulsar lists 12 hours at 50% (no 25% figure provided). If you value longer warranty coverage, DuroMax tends to fit better, while Pulsar suits buyers prioritizing easier handling and potentially longer mid-load runtime.
Key takeaways
- Both deliver 9500 running watts and 12000 starting watts on dual fuel.
- Both list 74 dB noise, better for home backup than quiet camping.
- DuroMax XP12000HX includes a 5-year warranty for longer ownership confidence.
- Pulsar G12KBN weighs 209 lb, lighter than DuroMax at 230 lb.
- DuroMax lists 19 hours at 25% load, Pulsar lists 12 hours at 50%.
Best use cases
Choose the DuroMax XP12000HX if you want the most confidence for long-term ownership. The 5-year warranty is a big deal for a high-output, open-frame style generator that may see regular use during storm season, on a property, or as a standby-style backup you roll out multiple times a year. With 9500 running watts and 12000 starting watts, it is well suited to starting motor loads (like a well pump or sump pump) while still keeping essentials running. DuroMax also publishes runtime at lighter load, 19 hours at 25%, which is helpful if your plan is overnight essentials rather than heavy tool use. The tradeoff is weight at 230 lb, so it is less friendly if you frequently move it alone.
Choose the Pulsar G12KBN if portability and simpler handling matter more than long warranty coverage. At 209 lb, it is still heavy, but it is meaningfully easier to maneuver in a garage, shed, or job site compared with a 230 lb unit. Pulsar lists 12 hours at 50% load, which can be attractive if your typical use is a steady mid-level draw (for example, running a few circuits during an outage or powering tools in bursts). The main compromise is the 1-year warranty, which may feel short if you want a generator you can lean on for many seasons.
For RV and camping: both are 74 dB and non-inverter, so they are generally better for home backup or work use than quiet-hours campgrounds or sensitive electronics without extra precautions.
Verdict & recommendation
If your priority is longer-term peace of mind and you expect to use the generator regularly, the DuroMax XP12000HX is easier to justify thanks to its 5-year warranty and clearly stated 19 hours at 25% load. If your priority is moving the generator more often, the Pulsar G12KBN’s 209 lb weight can make day-to-day handling less of a chore, and its listed 12 hours at 50% load may fit steady mid-load use.
Because both deliver 9500 running watts and 12000 starting watts on dual fuel with similar 74 dB noise, the decision mostly comes down to warranty confidence versus portability and the runtime figure that best matches how you actually use power.
Last updated February 22, 2026
| Specification | DuroMax XP12000HX | Pulsar G12KBN |
|---|---|---|
| General | ||
| Product type | Generator | Generator |
| Fuel | Dual-Fuel | Dual-Fuel |
| Inverter | No | No |
| Parallel capable | No | No |
| RV ready | Yes | No |
| Running watts | Winner: Winner: 9500 W | Winner: Winner: 9500 W |
| Starting watts | Winner: Winner: 12000 W | Winner: Winner: 12000 W |
| Noise (lower limit) | Winner: Winner: 74 dB | Winner: Winner: 74 dB |
| Weight | 230 lbs | Winner: Winner: 209 lbs |
| Run time @50% load | 9 h | Winner: Winner: 12 h |
| Run time @25% load | 19 h | Not available |
| Fuel tank | 8.3 gal | 8 gal |
| Fuel gauge | Yes | Yes |
| Approx. dimensions (L × W × H) | 29 x 30 x 26 | 28.5 x 21.8 x 22.2 |
| Electrical | ||
| Voltage (AC) | 120/240 | 120/240V 60 Hz |
| Voltage (DC) | Not available | 12 |
| GFCI outlets | Yes | No |
| Covered outlets | No | No |
| Automatic Voltage Regulation | Yes | Yes |
| THD | Not available | Not available |
| Engine | ||
| Engine | 457 cc OHV 4-stroke, cast iron sleeve | 457 cc Ducar OHV 4-stroke |
| Alternator | Not available | Not available |
| Starting system | Recoil, Electric | Recoil, Electric |
| Warranty | ||
| Warranty | 5 years | 1 years |
| Power by fuel | ||
| Gasoline | Not available | Not available |
| Running watts | 9500 W | 9500 W |
| Starting watts | 12000 W | 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 | 9 h | 12 h |
| Run time @25% load | 19 h | Not available |
| Propane | Not available | Not available |
| Running watts | 9025 W | 8550 W |
| Starting watts | 11400 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 | 5 h |
| Run time @25% load | 7 h | Not available |
| Other | ||
| Data center | Not available | Not available |
| Indicators | true | true |
| Compliance | CARB, EPA | CARB, EPA |
| Security | Not available | Not available |
| Spark arrestor | Yes | Yes |
| Neutral | Not available | Not available |
| UPC | 811640016227 | 814726024598 |
| Core / High-priority specs | ||
| Running Watts (Gasoline) | 9500 | 9500 |
| Running Watts (Propane) | 9025 | 8550 |
| Starting Watts (Gasoline) | 12000 | 12000 |
| Starting Watts (Propane) | 11400 | Not available |
| Runtime @ 50% Load (Gasoline) | 9 | 12 |
| Runtime @ 50% Load (Propane) | 3.5 | 5 |
| 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) | 2x 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 | Ducar OHV 4-stroke |
| Engine Displacement | 457 | 457 |
| Cylinder Sleeve | Cast iron sleeve | Not available |
| Alternator Winding Material | Copper windings | Not available |
| Engine Oil Type | Not available | 10W30 |
| Runtime & fuel system | ||
| Runtime @ 25% Load (Gasoline) | 19 | Not available |
| Runtime @ 50% Load (Gasoline) | 9 | 12 |
| Runtime @ 50% Load (Propane) | 3.5 | 5 |
| 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 | ||
| Starting Components | Recoil, Electric | Not available |
| Included Accessories | Funnel, tool kit, propane hose, battery, and wheel kit | Funnel, tool kit, propane hose, battery, and wheel kit |
| Warranty & identification | ||
| Residential Warranty | 5 | Not available |
| Commercial Warranty | 5 | 1 |
| Part Number | Not available | G12KBN-SG |
| 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 G12KBN is a 12,000-watt dual-fuel portable generator designed for versatility and reliability, offering both gasoline and propane fuel options, making it suitable for various power needs. |
- Most PowerfulDuroMax XP12000HX9500W running
- QuietestDuroMax XP12000HX74 dB
- Longest RuntimePulsar G12KBN12h at 50% load


