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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.

  • Energizer eZV4800
  • Firman W03383
  • Model eZV4800
    Model eZV4800

    Energizer 3,600W Gas Generator

    3600W
    Running
    70 dB
    Noise
    View details
  • Model W03383
    Model W03383

    Firman 3,300W Gas Generator

    3300W
    Running
    58 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
SpecificationEnergizer eZV4800Firman W03383
General
Product type
Generator
Generator
Fuel
Gasoline
Gasoline
InverterYesYes
Parallel capableNoYes
RV readyNoYes
Running watts
Winner: Winner: 3600 W
3300 W
Starting watts
Winner: Winner: 4800 W
3650 W
Noise (lower limit)
70 dB
Winner: Winner: 58 dB
Weight
Winner: Winner: 78 lbs
91 lbs
Run time @50% load
Winner: Winner: 11.8 h
Not available—
Run time @25% load
16.2 h
9 h
Fuel tank
3.2 gal
1.8 gal
Fuel gaugeYesNo
Approx. dimensions (L × W × H)
18 x 17 x 21
23.2 x 17.8 x 17.9
Electrical
Voltage (AC)
120
120
Voltage (DC)
12
12
GFCI outletsYesNo
Covered outletsYesYes
Automatic Voltage RegulationYesYes
THD
Not available—
<3% %
Engine
Engine
223 cc 4-stroke
193 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
3600 W
3300 W
Starting watts
4800 W
3650 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
11.8 h
Not available—
Run time @25% load
Not available—
9 h
Other
Data center
Not available—
Not available—
Indicators
true
true
Compliance
N/A
CARB, EPA
Security
Not available—
Not available—
Spark arrestorYesYes
Neutral
Floating
Not available—
UPC
628963400837
840876133835
Core / High-priority specs
Running Watts (Gasoline)
3600
3300
Starting Watts (Gasoline)
4800
3650
Runtime @ 50% Load (Gasoline)
11.8
Not available—
Runtime @ 25% Load (Gasoline)
Not available—
9
AC Outlet Types
1x Duplex 120V 20A (5-20R) 1x 120V 30A (L5-30R)
1x Duplex 120V 20A (5-20R)1x 120V 30A (TT-30R)
Electrical & power
Frequency
60
60
Engine & construction
Engine Type
4-stroke
OHV 4-stroke
Engine Displacement
223
193
Cylinder Sleeve
Not available—
cast iron sleeve
Engine Oil Type
SAE 10W-30
Not available—
Runtime & fuel system
Runtime @ 25% Load (Gasoline)
Not available—
9
Runtime @ 50% Load (Gasoline)
11.8
Not available—
Safety & compliance
Overload Protection System
Low oil and overload protection
Not available—
Low Oil ProtectionNoYes
Included equipment
Included Accessories
Not available—
Oil, funnel, tool kit, key fob, battery charger, battery charging cables, and battery
Warranty & identification
Commercial Warranty
3
Not available—
Part Number
INVEZV4800AD
Not available—
Additional specs
Summary
The Energizer eZV4800 is a 3,600-watt inverter generator built on a 223cc 4-stroke engine. This wattage class handles mid-range household loads: refrigerators, window air conditioners, power tools, and multiple devices simultaneously. The 78-pound weight and 18 x 17 x 21 inch footprint make it portable enough for job sites and camping trips, yet substantial enough to deliver real power without constant refueling. Gasoline fuel means no special storage concerns, and the inverter output protects laptops, phones, and televisions from voltage spikes.
The Firman W03383 is a 3300-watt inverter generator built around a 193cc OHV 4-stroke engine with a cast iron sleeve. At this wattage, it can run a refrigerator, microwave, and several lights simultaneously, or power essential household circuits during an outage. The inverter technology keeps total harmonic distortion below 3%, which protects laptops, smartphones, and other sensitive electronics from voltage spikes. This unit bridges the gap between lightweight portables and mid-range backup power, making it useful for both recreational trips and emergency home backup.
  • Most Powerful
    Energizer eZV4800
    3600W running
  • Quietest
    Firman W03383
    58 dB
  • Longest Runtime
    Energizer eZV4800
    11.8h at 50% load
Where to buy
Prices can change. We update these automatically.
Energizer eZV4800
Store links
No links yet.
Firman W03383
Store links
No links yet.
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