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DuroStar DS13000MXT vs DuroMax XP15000HXT+

DuroStar DS13000MXT vs DuroMax XP15000HXT+

Comparing two tri-fuel conventional generators: the DuroStar DS13000MXT (10,500W) and DuroMax XP15000HXT+ (12,000W). Which fits your power needs?

  • DuroMax XP15000HXT+
  • DuroStar DS13000MXT

Comparison Overview

Analysis by AJ Quick
Mechanical engineer and founder of RightGenerator

The DuroMax XP15000HXT+ delivers 12,000 running watts compared to the DuroStar DS13000MXT's 10,500 running watts, giving it a meaningful 1,500-watt advantage for powering larger loads. Both are tri-fuel generators capable of running on gasoline, propane, or natural gas, and both produce 74 dB of noise. The DuroMax also edges ahead in runtime at 50% load, lasting 12 hours versus the DuroStar's 8.5 hours, though at 25% load the gap narrows to just under an hour (17.9 vs 17 hours).

The DuroStar DS13000MXT fights back with a lighter frame at 211 pounds compared to the DuroMax's 237 pounds, making it somewhat easier to move around. It also carries a higher overall score of 7.55 versus the DuroMax's 6.42, suggesting stronger marks in areas like value and build quality. However, the DuroMax comes with a 5-year warranty, which is notably longer than the DuroStar's 3-year coverage.

If you need the most wattage and longest warranty in this class, the DuroMax XP15000HXT+ is the stronger pick. If you want a capable tri-fuel generator that's a bit lighter and potentially a better overall value, the DuroStar DS13000MXT deserves serious consideration.

Key takeaways

  • DuroMax XP15000HXT+ delivers 12,000 running watts versus the DuroStar's 10,500 watts
  • DuroStar DS13000MXT weighs 211 pounds, 26 pounds lighter than the DuroMax at 237 pounds
  • DuroMax offers a 5-year warranty compared to the DuroStar's 3-year warranty
  • Both generators run on three fuel types: gasoline, propane, and natural gas
  • DuroMax runs 12 hours at 50% load versus the DuroStar's 8.5 hours
  • Both produce 74 dB of noise, so neither has a sound advantage

Best use cases

Choose the DuroStar DS13000MXT if you need a solid whole-home backup generator but don't necessarily need to power everything at once. With 10,500 running watts, it can handle most essential circuits, including a refrigerator, sump pump, well pump, lights, and a smaller central air conditioning unit. At 211 pounds, it's still heavy, but roughly 26 pounds lighter than the DuroMax, which matters if you need to reposition it or load it into a truck bed. The tri-fuel flexibility means you can run it on whatever fuel is available during an extended outage. If you're budget-conscious and want a generator that punches above its weight in overall quality, this is a strong option.

Choose the DuroMax XP15000HXT+ if your home has higher electrical demands or you want more headroom for running multiple large appliances simultaneously. The 12,000 running watts and 15,000 starting watts give you the capacity to handle a larger central AC unit alongside other heavy loads without worrying about tripping the breaker. The 12-hour runtime at half load is a real advantage during prolonged power outages, meaning fewer middle-of-the-night refueling trips. The 5-year warranty also provides extra peace of mind for a machine you might only use during emergencies, since problems can surface years after purchase.

Both generators share the same noise level, so neither has an advantage there. Neither is an inverter generator, so sensitive electronics like laptops should be plugged in through a surge protector. For job site use where you're running power tools and compressors, either will perform well, but the DuroMax gives you more breathing room for running multiple tools at once.

Verdict & recommendation

If your priority is maximum power output and long-term warranty protection, the DuroMax XP15000HXT+ is the better fit. Its 1,500 extra running watts and 5-year warranty make it a compelling choice for homeowners with larger electrical panels or anyone who values extended coverage. If you'd rather save some weight, potentially some money, and still get a very capable tri-fuel generator with strong overall quality marks, the DuroStar DS13000MXT is a smart buy that will handle most home backup and job site scenarios without breaking a sweat.

Both generators are well-matched for emergency preparedness and heavy-duty portable power. Your decision should come down to whether you need that extra wattage headroom or prefer a lighter, potentially better-value package.

Last updated April 21, 2026

  • Model XP15000HXT+
    Model XP15000HXT+

    DuroMax 12,000W Tri-Fuel Generator

    12000W
    Running
    74 dB
    Noise
    View details
  • Model DS13000MXT
    Model DS13000MXT

    DuroStar 10,500W Tri-Fuel Generator

    10500W
    Running
    74 dB
    Noise
    View details
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).
Generator Specifications Comparison
SpecificationDuroMax XP15000HXT+DuroStar DS13000MXT
General
Product type
Generator
Generator
Fuel
Tri-Fuel
Tri-Fuel
InverterNoNo
Parallel capableNoNo
RV readyYesYes
Running watts
Winner: Winner: 12000 W
10500 W
Starting watts
Winner: Winner: 15000 W
13000 W
Noise (lower limit)
Winner: Winner: 74 dB
Winner: Winner: 74 dB
Weight
237 lbs
Winner: Winner: 211 lbs
Run time @50% load
Winner: Winner: 12 h
8.5 h
Run time @25% load
17.9 h
17 h
Fuel tank
10.6 gal
8.3 gal
Fuel gaugeYesYes
Approx. dimensions (L × W × H)
29.5 x 28 x 26
30.5 x 27.3 x 26
Electrical
Voltage (AC)
120/240V 60 Hz
120/240
Voltage (DC)
Not available
Not available
GFCI outletsYesYes
Covered outletsYesYes
Automatic Voltage RegulationYesYes
THD
<5% %
Not available
Engine
Engine
500 cc OHV 4-stroke, cast iron sleeve
500 cc OHV 4-stroke, cast iron sleeve
Alternator
Not available
Not available
Starting system
Recoil, Electric, Remote
Recoil, Electric, Remote
Warranty
Warranty
5 years
3 years
Power by fuel
GasolineNot availableNot available
Running watts
12000 W
10500 W
Starting watts
15000 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
12 h
8.5 h
Run time @25% load
17.9 h
17 h
Natural gasNot availableNot available
Running watts
10500 W
9000 W
Starting watts
13000 W
11250 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
PropaneNot availableNot available
Running watts
11400 W
10000 W
Starting watts
14250 W
12500 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
2.8 h
3.3 h
Run time @25% load
4.1 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 arrestorYesYes
Neutral
Not available
Not available
UPC
811640017156
811640017149
Core / High-priority specs
Running Watts (Gasoline)
12000
10500
Running Watts (Propane)
11400
10000
Running Watts (Natural Gas)
10500
9000
Starting Watts (Gasoline)
15000
13000
Starting Watts (Propane)
14250
12500
Starting Watts (Natural Gas)
13000
11250
Runtime @ 50% Load (Gasoline)
12
8.5
Runtime @ 50% Load (Propane)
2.8
3.3
Runtime @ 25% Load (Gasoline)
17.9
17
Runtime @ 25% Load (Propane)
4.1
6.5
AC Outlet Types
2x Duplex 120V 20A (5-20R) GFCI; 2x 120/240V 50A (14-50R)
2x Duplex 120V 20A (5-20R) GFCI; 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, cast iron sleeve
Engine Displacement
500
500
Cylinder Sleeve
cast iron sleeve
cast iron sleeve
Alternator Winding Material
Copper windings
Copper windings
Engine Oil Type
10W-30
Not available
Runtime & fuel system
Runtime @ 25% Load (Gasoline)
17.9
17
Runtime @ 50% Load (Gasoline)
12
8.5
Runtime @ 50% Load (Propane)
2.8
3.3
Safety & compliance
Overload Protection System
Low oil and overload protection, CO monitoring
Low oil and overload protection, CO monitoring
Low Oil ProtectionYesNo
Carbon Monoxide MonitoringYesYes
Included equipment
Included Accessories
Oil, funnel, tool kit, key fob, battery charger, natural gas hose with NPT adapter, propane hose, battery, and wheel kit
Funnel, tool kit, key fob, battery charger, natural gas hose with NPT adapter, propane hose, battery, and wheel kit
Warranty & identification
Residential Warranty
5
Not available
Commercial Warranty
5
3
Additional specs
Summary
The DuroMax XP15000HXT+ is a 12,000-watt tri-fuel generator built for serious backup power and job site work. Running on gasoline, propane, or natural gas, it delivers 15,000 peak watts and 12,000 running watts, enough to power multiple heavy loads simultaneously like refrigerators, air conditioners, and construction tools. The tri-fuel flexibility means users can choose the most available or cost-effective fuel source for their situation. This is a stationary workhorse, not a portable grab-and-go unit. At 237 pounds with a 29.5 x 28 x 26 inch footprint, it requires permanent placement or serious logistics to move. The included wheel kit helps, but this generator is built to stay put once deployed.
The DuroStar DS13000MXT is a 10,500-watt tri-fuel generator built for high-demand applications. Its tri-fuel capability (gasoline, propane, natural gas) and 13,000-watt starting capacity make it suitable for whole-house backup, RV power, and job-site work where fuel supply flexibility matters.
  • Most Powerful
    DuroMax XP15000HXT+
    12000W running
  • Quietest
    DuroMax XP15000HXT+
    74 dB
  • Longest Runtime
    DuroMax XP15000HXT+
    12h at 50% load
Where to buy
Prices can change. We update these automatically.
DuroMax XP15000HXT+
Store links
No links yet.
DuroStar DS13000MXT
Store links
No links yet.
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