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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.

  • DuroStar DS4000S
  • Energizer eZV4800
  • Model DS4000S
    Model DS4000S

    DuroStar 3,300W Gas Generator

    3300W
    Running
    69 dB
    Noise
    View details
  • Model eZV4800
    Model eZV4800

    Energizer 3,600W Gas Generator

    3600W
    Running
    70 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
SpecificationDuroStar DS4000SEnergizer eZV4800
General
Product type
Generator
Generator
Fuel
Gasoline
Gasoline
InverterNoYes
Parallel capableNoNo
RV readyNoNo
Running watts
3300 W
Winner: Winner: 3600 W
Starting watts
4000 W
Winner: Winner: 4800 W
Noise (lower limit)
Winner: Winner: 69 dB
70 dB
Weight
92 lbs
Winner: Winner: 78 lbs
Run time @50% load
Winner: Winner: 12 h
11.8 h
Run time @25% load
26 h
16.2 h
Fuel tank
4 gal
3.2 gal
Fuel gaugeYesYes
Approx. dimensions (L × W × H)
23 x 18 x 17.5
18 x 17 x 21
Electrical
Voltage (AC)
120
120
Voltage (DC)
Not available
12
GFCI outletsNoYes
Covered outletsNoYes
Automatic Voltage RegulationYesYes
THD
Not available
Not available
Engine
Engine
DuroStar OHV 4-stroke
223 cc 4-stroke
Alternator
Not available
Not available
Starting system
Recoil
Recoil
Warranty
Warranty
3 years
3 years
Power by fuel
GasolineNot availableNot available
Running watts
3300 W
3600 W
Starting watts
4000 W
4800 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
11.8 h
Run time @25% load
26 h
Not available
Other
Data center
Not available
Not available
Indicators
true
true
Compliance
CARB, EPA
N/A
Security
Not available
Not available
Spark arrestorYesYes
Neutral
Floating
Floating
UPC
811640011840
628963400837
Core / High-priority specs
Running Watts (Gasoline)
3300
3600
Starting Watts (Gasoline)
4000
4800
Runtime @ 50% Load (Gasoline)
12
11.8
Runtime @ 25% Load (Gasoline)
26
Not available
AC Outlet Types
1x Duplex 120V 20A (5-20R); 1x 120V 30A (L5-30R)
1x Duplex 120V 20A (5-20R) 1x 120V 30A (L5-30R)
Electrical & power
Frequency
60
60
Engine & construction
Engine Type
OHV 4-stroke
4-stroke
Engine Displacement
208
223
Engine Oil Type
10W-30
SAE 10W-30
Runtime & fuel system
Runtime @ 25% Load (Gasoline)
26
Not available
Runtime @ 50% Load (Gasoline)
12
11.8
Safety & compliance
Overload Protection System
Low oil and overload protection
Low oil and overload protection
Low Oil ProtectionYesNo
Included equipment
Included Accessories
Funnel and tool kit
Not available
Warranty & identification
Commercial Warranty
Not available
3
Part Number
Not available
INVEZV4800AD
Additional specs
Summary
The DuroStar DS4000S is a 3,300-watt gasoline generator built around a DuroStar OHV 4-stroke engine that delivers 4,000 peak watts for startup surges. This wattage range powers essential household appliances, power tools, and small job site equipment simultaneously. A single person can operate it because the recoil starting system requires only manual pull-cord engagement, though the 92-pound weight means transport over distance demands planning. The 4-gallon fuel tank runs 26 hours at 25 percent load or 12 hours at 50 percent load, making it suitable for extended outages or multi-day outdoor use without constant refueling. EPA and CARB compliance clears this unit for all 50 states.
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.
  • Most Powerful
    Energizer eZV4800
    3600W running
  • Quietest
    DuroStar DS4000S
    69 dB
  • Longest Runtime
    DuroStar DS4000S
    12h at 50% load
Where to buy
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DuroStar DS4000S
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Energizer eZV4800
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