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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 XP13000E
  • Firman P08008
  • Model XP13000E
    Model XP13000E

    DuroMax 10,500W Gas Generator

    10500W
    Running
    74 dB
    Noise
    View details
  • Model P08008
    Model P08008

    Firman 8,000W Gas Generator

    8000W
    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 XP13000EFirman P08008
General
Product type
Generator
Generator
Fuel
Gasoline
Gasoline
InverterNoNo
Parallel capableNoNo
RV readyYesYes
Running watts
Winner: Winner: 10500 W
8000 W
Starting watts
Winner: Winner: 13000 W
10000 W
Noise (lower limit)
Winner: Winner: 74 dB
Winner: Winner: 74 dB
Weight
236 lbs
Winner: Winner: 208 lbs
Run time @50% load
8 h
Winner: Winner: 12 h
Run time @25% load
17 h
Not available—
Fuel tank
8.3 gal
8 gal
Fuel gaugeYesYes
Approx. dimensions (L × W × H)
29 x 30 x 26
27.1 x 27.5 x 26.8
Electrical
Voltage (AC)
120/240V 60 Hz
120/240
Voltage (DC)
12
Not available—
GFCI outletsYesYes
Covered outletsNoYes
Automatic Voltage RegulationYesYes
THD
12 %
25 %
Engine
Engine
500 cc DuroMax OHV 4-stroke, cast iron sleeve
439 cc Firman Max-Pro Series 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
GasolineNot available—Not available—
Running watts
10500 W
8000 W
Starting watts
13000 W
10000 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
12 h
Run time @25% load
17 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 arrestorYesYes
Neutral
Not available—
true
UPC
811640015718
840876180082
Core / High-priority specs
Running Watts (Gasoline)
10500
8000
Starting Watts (Gasoline)
13000
10000
Runtime @ 50% Load (Gasoline)
8
12
Runtime @ 25% Load (Gasoline)
17
Not available—
AC Outlet Types
1x Duplex 120V 20A (5-20R) GFCI; 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 (L5-30R); 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
500
439
Cylinder Sleeve
cast iron sleeve
Cast iron sleeve
Alternator Winding Material
Copper windings
Not available—
Engine Oil Type
10W-30
Not available—
Runtime & fuel system
Runtime @ 25% Load (Gasoline)
17
Not available—
Runtime @ 50% Load (Gasoline)
8
12
Safety & compliance
Overload Protection System
Low oil and overload protection
Low oil and overload protection
Low Oil ProtectionYesYes
Carbon Monoxide MonitoringNoYes
Included equipment
Starting Components
Recoil, Electric
Recoil, Electric, Remote
Included Accessories
Funnel, tool kit, battery charging cables, battery, and wheel kit
Oil, funnel, tool kit, key fob, RV adapter, battery, and wheel kit
Warranty & identification
Commercial Warranty
3
3
Additional specs
Summary
The DuroMax XP13000E is a gasoline-powered generator with a rated wattage of 10500 watts and a peak wattage of 13000 watts, making it suitable for heavy-duty applications requiring high power output.
The Firman P08008 is an 8,000-watt gas generator built for job sites, emergency backup, and outdoor events where sustained power matters more than portability. At 8,000 running watts and 10,000 peak watts, this unit can run a refrigerator, microwave, and power tools simultaneously, or handle the electrical load of a small RV. The 439cc cast-iron-sleeve engine burns gasoline, a fuel readily available at any gas station, and runs for 12 hours at half load on an 8-gallon tank. This runtime window means a single refueling cycle covers an overnight power outage or a full day of outdoor work.
  • Most Powerful
    DuroMax XP13000E
    10500W running
  • Quietest
    DuroMax XP13000E
    74 dB
  • Longest Runtime
    Firman P08008
    12h at 50% load
Where to buy
Prices can change. We update these automatically.
DuroMax XP13000E
Store links
No links yet.
Firman P08008
Store links
No links yet.
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