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Select up to 4 generators to compare specs, power output, noise levels, runtime and more. Your compare URL is shareable.

  • Cummins Onan P2500i
  • DuroMax XP9500iHT
  • Model Onan P2500i
    Model Onan P2500i

    Cummins 2,200W Gas Generator

    2200W
    Running
    52 dB
    Noise
    View details
  • Model XP9500iHT
    Model XP9500iHT

    DuroMax 7,500W Tri-Fuel Generator

    7500W
    Running
    61 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
SpecificationCummins Onan P2500iDuroMax XP9500iHT
General
Product type
Generator
Generator
Fuel
Gasoline
Tri-Fuel
InverterYesYes
Parallel capableYesYes
RV readyNoYes
Running watts
2200 W
Winner: Winner: 7500 W
Starting watts
2500 W
Winner: Winner: 9500 W
Noise (lower limit)
Winner: Winner: 52 dB
61 dB
Weight
Winner: Winner: 48 lbs
216 lbs
Run time @50% load
8 h
Winner: Winner: 11 h
Run time @25% load
10 h
21 h
Fuel tank
1 gal
7.1 gal
Fuel gaugeYesYes
Approx. dimensions (L × W × H)
19.8 x 10.5 x 18.3
26.2 x 25 x 29.6
Electrical
Voltage (AC)
120
120/240
Voltage (DC)
12
Not available
GFCI outletsNoYes
Covered outletsYesYes
Automatic Voltage RegulationYesYes
THD
<3% %
<3% %
Engine
Engine
98 cc Ducar OHV 4-stroke engine
459 cc OHV 4-stroke, cast iron sleeve
Alternator
Not available
Not available
Starting system
Recoil
Recoil, Electric, Remote
Warranty
Warranty
3 years
5 years
Power by fuel
GasolineNot availableNot available
Running watts
2200 W
7500 W
Starting watts
2500 W
9500 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
11 h
Run time @25% load
10 h
21 h
Natural gasNot availableNot available
Running watts
Not available
6500 W
Starting watts
Not available
8200 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
Not available
7200 W
Starting watts
Not available
9025 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
5 h
Run time @25% load
Not available
9.5 h
Other
Data center
Not available
Not available
Indicators
true
true
Compliance
CARB, EPA
EPA
Security
Not available
Not available
Spark arrestorYesYes
Neutral
Floating
Not available
UPC
690781007918
811640017088
Core / High-priority specs
Running Watts (Gasoline)
2200
7500
Running Watts (Propane)
Not available
7200
Running Watts (Natural Gas)
Not available
6500
Starting Watts (Gasoline)
2500
9500
Starting Watts (Propane)
Not available
9025
Starting Watts (Natural Gas)
Not available
8200
Runtime @ 50% Load (Gasoline)
8
11
Runtime @ 50% Load (Propane)
Not available
5
Runtime @ 25% Load (Gasoline)
10
21
Runtime @ 25% Load (Propane)
Not available
9.5
AC Outlet Types
1x Duplex 120V 20A (5-20R)
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
Ducar OHV 4-stroke
OHV 4-stroke, cast iron sleeve
Engine Displacement
98
459
Cylinder Sleeve
Not available
Cast iron sleeve
Alternator Winding Material
Not available
Copper windings
Engine Oil Type
SAE 10W30
10W-30
Runtime & fuel system
Runtime @ 25% Load (Gasoline)
10
21
Runtime @ 50% Load (Gasoline)
8
11
Runtime @ 50% Load (Propane)
Not available
5
Safety & compliance
Overload Protection System
Low oil and overload protection
Low oil and overload protection, CO monitoring
Low Oil ProtectionYesYes
Carbon Monoxide MonitoringNoYes
Included equipment
Starting Components
Not available
Recoil, Electric, Remote
Included Accessories
Oil, funnel, and tool kit
Not available
Warranty & identification
Commercial Warranty
Not available
5
Additional specs
Summary
The Cummins Onan P2500i is a 2200-watt inverter generator built for users who need portable power without sacrificing runtime or noise control. At 48 pounds and measuring 19.8 by 10.5 by 18.3 inches, this unit bridges the gap between true portability and practical capacity. It can run a microwave, small refrigerator, or circular saw continuously, making it suitable for camping trips, job sites, tailgating, and emergency backup. The 1-gallon fuel tank delivers 10 hours at 25 percent load and 8 hours at 50 percent load, meaning most users refuel once per day rather than multiple times. The inverter topology produces clean power with less than 3 percent THD, which protects laptops, phone chargers, and sensitive electronics from voltage spikes. Cummins backs this unit with a 3-year warranty, longer than the 2.4-year average for comparable inverter generators. The 52 dBA noise level sits between a normal conversation and light traffic, allowing operation in noise-restricted campgrounds and residential neighborhoods without drawing complaints.
The DuroMax XP9500iHT is a tri-fuel generator with a rated wattage of 7500 watts and a peak wattage of 9500 watts. It features multiple outlets and advanced starting options.
  • Most Powerful
    DuroMax XP9500iHT
    7500W running
  • Quietest
    Cummins Onan P2500i
    52 dB
  • Longest Runtime
    DuroMax XP9500iHT
    11h at 50% load
Where to buy
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Cummins Onan P2500i
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DuroMax XP9500iHT
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