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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.

  • DEWALT DXGNR5700
  • Firman P03631
  • Model DXGNR5700
    Model DXGNR5700

    DEWALT 5,700W Gas Generator

    5700W
    Running
    0 dB
    Noise
    View details
  • Model P03631
    Model P03631

    Firman 3,650W Gas Generator

    3650W
    Running
    75 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
SpecificationDEWALT DXGNR5700Firman P03631
General
Product type
Generator
Generator
Fuel
Gasoline
Gasoline
InverterNoNo
Parallel capableNoNo
RV readyNoYes
Running watts
Winner: Winner: 5700 W
3650 W
Starting watts
Winner: Winner: 7125 W
4450 W
Noise (lower limit)
0 dB
Winner: Winner: 75 dB
Weight
172 lbs
Winner: Winner: 119.5 lbs
Run time @50% load
10.5 h
Winner: Winner: 14 h
Run time @25% load
Not available—
Not available—
Fuel tank
6.7 gal
5 gal
Fuel gaugeYesYes
Approx. dimensions (L × W × H)
27.2 x 27 x 25.7
24.8 x 21.7 x 21.7
Electrical
Voltage (AC)
120/240
120/240
Voltage (DC)
Not available—
12
GFCI outletsYesYes
Covered outletsYesYes
Automatic Voltage RegulationYesYes
THD
Not available—
<25% %
Engine
Engine
Dewalt OHV 4-stroke
208 cc Firman Max-Pro Series OHV 4-stroke, cast iron sleeve
Alternator
Not available—
Not available—
Starting system
Recoil
Recoil, Electric, Remote
Warranty
Warranty
3 years
3 years
Power by fuel
GasolineNot available—Not available—
Running watts
5700 W
3650 W
Starting watts
7125 W
4450 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
10.5 h
14 h
Run time @25% load
Not available—
Not available—
Other
Data center
Not available—
Not available—
Indicators
false
true
Compliance
CARB, EPA
CARB, EPA, ANSI/PGMA G300-2023
Security
Not available—
Not available—
Spark arrestorYesYes
Neutral
Bonded to frame
true
UPC
696471003109
840876136317
Core / High-priority specs
Running Watts (Gasoline)
5700
3650
Starting Watts (Gasoline)
7125
4450
Runtime @ 50% Load (Gasoline)
10.5
14
AC Outlet Types
2x Duplex 120V 20A (5-20R); 1x 120/240V 30A (L14-30R) GFCI
1x Duplex 120V 20A (5-20R) GFCI; 1x 120V 30A (TT-30R); 1x 120/240V 30A (L14-30R)
Electrical & power
Frequency
60
60
Engine & construction
Engine Type
OHV 4-stroke
208 cc Firman Max-Pro Series OHV 4-stroke, cast iron sleeve
Engine Displacement
389
208
Cylinder Sleeve
Not available—
cast iron sleeve
Runtime & fuel system
Runtime @ 50% Load (Gasoline)
10.5
14
Safety & compliance
Overload Protection System
Not available—
Low oil and overload protection
Low Oil ProtectionYesYes
Carbon Monoxide MonitoringNoYes
Included equipment
Mobility Components
Not available—
Yes
Included Accessories
Wheel kit
Oil, funnel, tool kit, key fob, battery, and wheel kit
Warranty & identification
Commercial Warranty
Not available—
3
Additional specs
Summary
The DEWALT DXGNR5700 is a 5,700-watt gasoline generator built for job site power demands. It runs household circuits and mid-range power tools simultaneously, making it suitable for construction crews, outdoor events, and backup power scenarios where dual-voltage output matters.
The Firman P03631 is a 3,650-watt gasoline generator built for homeowners, RV users, and outdoor enthusiasts who need reliable backup power without breaking portability limits. At this wattage, the unit can run a refrigerator, microwave, and several power tools simultaneously, or power an RV's air conditioning and appliances during camping trips. The 4,450-watt peak capacity handles the startup surge of compressors and air conditioners, which draw 2 to 3 times their running wattage on initial startup. The P03631 delivers 14 hours of runtime at 50% load from its 5-gallon tank, meaning a user can power essential devices through a full day and night without refueling. This runtime window makes it practical for weekend camping or a 24-hour power outage without the need for a second fuel run. The gasoline fuel type keeps refueling simple at any gas station, and the inclusion of a fuel gauge eliminates guesswork about tank level.
  • Most Powerful
    DEWALT DXGNR5700
    5700W running
  • Quietest
    Firman P03631
    75 dB
  • Longest Runtime
    Firman P03631
    14h at 50% load
Where to buy
Prices can change. We update these automatically.
DEWALT DXGNR5700
Store links
No links yet.
Firman P03631
Store links
No links yet.
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