
DuroStar DS13000MX vs DuroMax XP12000EH
Comparing the DuroStar DS13000MX and DuroMax XP12000EH dual-fuel generators. See which high-output model fits your home backup or job site needs best.
- DuroMax XP12000EH
- DuroStar DS13000MX
Comparison Overview
The DuroStar DS13000MX delivers 10,500 running watts and 13,000 starting watts, giving it a meaningful power advantage over the DuroMax XP12000EH's 9,500 running watts and 12,000 starting watts. That extra 1,000 watts of running capacity can make a real difference when you're powering multiple large appliances or running demanding tools simultaneously. Both are conventional (non-inverter) dual-fuel generators capable of running on gasoline or propane, and both produce 74 dB of noise.
Despite its higher output, the DS13000MX is actually lighter at 209 lbs compared to the XP12000EH's 224 lbs, which is a nice bonus when it comes to transport and positioning. The XP12000EH fights back with slightly better fuel efficiency at lighter loads, offering 19 hours of runtime at 25% load versus the DS13000MX's 17 hours. At 50% load, the numbers are nearly identical (8 hours vs 8.5 hours). Both generators carry a 3-year warranty.
If raw power output and a lighter frame matter most, the DS13000MX has the edge. If you value longer runtime during lighter-demand periods and can live with slightly less wattage, the XP12000EH is a solid alternative.
Key takeaways
- DuroStar DS13000MX delivers 10,500 running watts, 1,000 more than the XP12000EH
- DuroMax XP12000EH runs up to 19 hours at 25% load for better fuel efficiency
- Both produce 74 dB of noise and offer dual-fuel gasoline and propane operation
- DuroStar DS13000MX weighs 209 lbs, 15 pounds lighter than the XP12000EH at 224 lbs
- Both carry a 3-year warranty and are conventional non-inverter generators
Best use cases
Choose the DuroStar DS13000MX if you need the highest wattage you can get in this class. With 10,500 running watts, it can comfortably handle a central air conditioner, refrigerator, sump pump, and several lights at the same time. That makes it a strong pick for whole-home emergency backup, especially in larger homes where you don't want to constantly juggle which circuits are active. It's also the better choice for job sites where you might run a welder, air compressor, or other high-draw tools alongside smaller equipment. The fact that it weighs 15 pounds less than the XP12000EH is a practical bonus, though at over 200 lbs, neither generator is something you'll be casually moving around without a wheel kit.
Choose the DuroMax XP12000EH if your power demands are a bit more moderate and you'd rather stretch your fuel supply further. Its 19-hour runtime at 25% load gives you roughly two extra hours compared to the DS13000MX, which matters during extended outages when fuel may be hard to find. At 9,500 running watts, it still has plenty of capacity to run most essential home circuits, including a smaller central AC unit or a window AC alongside other appliances. It's also a capable job site generator for most trades.
Both generators share the same noise level and warranty coverage, so those factors won't tip the scales. The dual-fuel capability on both models gives you flexibility to switch to propane when gasoline is scarce, which is a genuine advantage during storm season. The real decision comes down to whether you need that extra 1,000 watts of running power or would prefer the longer runtime and potentially lower price point that the XP12000EH offers.
Verdict & recommendation
If your priority is maximum power output and you want the lightest option in this matchup, the DuroStar DS13000MX is the stronger pick. Its 10,500 running watts give you more headroom for demanding loads, and it manages to do so in a slightly lighter package. If your priority is fuel efficiency during lighter use and your power needs fall comfortably within 9,500 running watts, the DuroMax XP12000EH delivers excellent value with its longer runtime at quarter load.
Both are capable, well-matched dual-fuel generators with identical noise levels and warranty terms. The best choice depends on whether you'd rather have extra watts or extra hours per tank of fuel. For most home backup scenarios involving central air conditioning, the DS13000MX's additional capacity provides welcome peace of mind. For lighter backup needs or extended runtime situations, the XP12000EH holds its own.
Last updated March 29, 2026
| Specification | DuroMax XP12000EH | DuroStar DS13000MX |
|---|---|---|
| General | ||
| Product type | Generator | Generator |
| Fuel | Dual-Fuel | Dual-Fuel |
| Inverter | No | No |
| Parallel capable | No | No |
| RV ready | Yes | Yes |
| Running watts | 9500 W | Winner: Winner: 10500 W |
| Starting watts | 12000 W | Winner: Winner: 13000 W |
| Noise (lower limit) | Winner: Winner: 74 dB | Winner: Winner: 74 dB |
| Weight | 224 lbs | Winner: Winner: 209 lbs |
| Run time @50% load | 8 h | Winner: Winner: 8.5 h |
| Run time @25% load | 19 h | 17 h |
| Fuel tank | 8.3 gal | 8.3 gal |
| Fuel gauge | Yes | Yes |
| Approx. dimensions (L × W × H) | 29 x 30 x 26 | 29.8 x 27.5 x 25.8 |
| Electrical | ||
| Voltage (AC) | 120/240 | 120/240 |
| Voltage (DC) | 12 | Not available |
| GFCI outlets | Yes | Yes |
| Covered outlets | No | Yes |
| Automatic Voltage Regulation | Yes | Yes |
| THD | Not available | Not available |
| Engine | ||
| Engine | 457 cc DuroMax OHV 4-stroke, cast iron sleeve | 500 cc OHV 4-stroke, cast iron sleeve |
| Alternator | Not available | Not available |
| Starting system | Recoil, Electric | Recoil, Electric, Remote |
| Warranty | ||
| Warranty | 3 years | 3 years |
| Power by fuel | ||
| Gasoline | Not available | Not available |
| Running watts | 9500 W | 10500 W |
| Starting watts | 12000 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 | 8 h | 8.5 h |
| Run time @25% load | 19 h | 17 h |
| Propane | Not available | Not available |
| Running watts | 8075 W | 9975 W |
| Starting watts | 10200 W | 12350 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 | 3.3 h |
| Run time @25% load | 7 h | 6.5 h |
| 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 | 811640014681 | 811640016746 |
| Core / High-priority specs | ||
| Running Watts (Gasoline) | 9500 | 10500 |
| Running Watts (Propane) | 8075 | 9975 |
| Starting Watts (Gasoline) | 12000 | 13000 |
| Starting Watts (Propane) | 10200 | 12350 |
| Runtime @ 50% Load (Gasoline) | 8 | 8.5 |
| Runtime @ 50% Load (Propane) | 3.5 | 3.3 |
| Runtime @ 25% Load (Gasoline) | 19 | 17 |
| Runtime @ 25% Load (Propane) | 7 | 6.5 |
| AC Outlet Types | 1x Duplex 120V 20A (5-20R) GFCI1x 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 | OHV 4-stroke, cast iron sleeve |
| Engine Displacement | 457 | 500 |
| Cylinder Sleeve | cast iron sleeve | Cast iron sleeve |
| Alternator Winding Material | Copper windings | Copper windings |
| Engine Oil Type | Not available | 10W-30 |
| Runtime & fuel system | ||
| Runtime @ 25% Load (Gasoline) | 19 | 17 |
| Runtime @ 50% Load (Gasoline) | 8 | 8.5 |
| Runtime @ 50% Load (Propane) | 3.5 | 3.3 |
| Controls & display | ||
| Display Type | Voltmeter | Not available |
| Safety & compliance | ||
| Overload Protection System | Low oil and overload protection | Low oil and overload protection, CO monitoring |
| Low Oil Protection | Yes | No |
| Carbon Monoxide Monitoring | No | Yes |
| Included equipment | ||
| Starting Components | Not available | Recoil, Electric, Remote |
| Included Accessories | Funnel, tool kit, propane hose, battery, and wheel kit | Funnel, tool kit, key fob, battery charger, propane hose, battery, and wheel kit |
| Warranty & identification | ||
| Commercial Warranty | 3 | 3 |
| Additional specs | ||
| Summary | The DuroMax XP12000EH is a 9,500-watt dual-fuel generator built around a 457 cc OHV 4-stroke engine with cast iron sleeves. This wattage class handles simultaneous operation of multiple household appliances, power tools, and RV systems. The dual-fuel capability means users can switch between gasoline and propane based on fuel availability and storage preferences. Gasoline delivers 9,500 running watts with an 8-hour runtime at 50% load. Propane reduces output to 8,075 running watts but extends runtime to 19 hours at 25% load, making it the better choice for extended backup scenarios where refueling frequency matters. The 12,000 peak watts handle motor inrush demands during startup of compressors, pumps, and air conditioning units. | The DuroStar DS13000MX is a dual-fuel generator with a rated wattage of 10500 watts and a peak wattage of 13000 watts. It features a 500 cc OHV 4-stroke engine and is designed for versatile power needs. |
- Most PowerfulDuroStar DS13000MX10500W running
- QuietestDuroMax XP12000EH74 dB
- Longest RuntimeDuroStar DS13000MX8.5h at 50% load


