Skip to content

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 DS11000DX
  • ECHO EGi-4000
  • Model DS11000DX
    Model DS11000DX

    DuroStar 9,000W Dual-Fuel Generator

    9000W
    Running
    74 dB
    Noise
    View details
  • Model EGi-4000
    Model EGi-4000

    ECHO 3,400W Gas Generator

    3400W
    Running
    67 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 DS11000DXECHO EGi-4000
General
Product type
Generator
Generator
Fuel
Dual-Fuel
Gasoline
InverterNoYes
Parallel capableNoNo
RV readyYesYes
Running watts
Winner: Winner: 9000 W
3400 W
Starting watts
Winner: Winner: 11000 W
4000 W
Noise (lower limit)
74 dB
Winner: Winner: 67 dB
Weight
230 lbs
Winner: Winner: 86 lbs
Run time @50% load
9 h
Winner: Winner: 10 h
Run time @25% load
19 h
Not available
Fuel tank
8.3 gal
3.3 gal
Fuel gaugeYesYes
Approx. dimensions (L × W × H)
29 x 30 x 26 in
27 x 18.8 x 24
Electrical
Voltage (AC)
120/240V 60 Hz
120
Voltage (DC)
Not available
5
GFCI outletsYesNo
Covered outletsNoYes
Automatic Voltage RegulationYesYes
THD
Not available
Not available
Engine
Engine
457 cc OHV 4-stroke, cast iron sleeve
212 cc OHV 4-stroke
Alternator
Not available
Not available
Starting system
Recoil, Electric
Recoil
Warranty
Warranty
5 years
3 years
Power by fuel
GasolineNot availableNot available
Running watts
9000 W
3400 W
Starting watts
11000 W
4000 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
9 h
10 h
Run time @25% load
19 h
Not available
PropaneNot availableNot available
Running watts
8550 W
Not available
Starting watts
10450 W
Not available
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
3.5 h
Not available
Run time @25% load
7 h
Not available
Other
Data center
Not available
Not available
Indicators
true
false
Compliance
CARB, EPA
CARB
Security
Not available
Not available
Spark arrestorYesYes
Neutral
Not available
Floating
UPC
811640016722
743184017579
Core / High-priority specs
Running Watts (Gasoline)
9000
3400
Running Watts (Propane)
8550
Not available
Starting Watts (Gasoline)
11000
4000
Starting Watts (Propane)
10450
Not available
Runtime @ 50% Load (Gasoline)
9
10
Runtime @ 50% Load (Propane)
3.5
Not available
Runtime @ 25% Load (Gasoline)
19
Not available
Runtime @ 25% Load (Propane)
7
Not available
AC Outlet Types
2x 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 (TT-30R)
Electrical & power
Frequency
60
60
Engine & construction
Engine Type
OHV 4-stroke, cast iron sleeve
OHV 4-stroke
Engine Displacement
457
212
Cylinder Sleeve
cast iron sleeve
Not available
Alternator Winding Material
Copper windings
Not available
Engine Oil Type
10W-30
Not available
Runtime & fuel system
Runtime @ 25% Load (Gasoline)
19
Not available
Runtime @ 50% Load (Gasoline)
9
10
Runtime @ 50% Load (Propane)
3.5
Not available
Safety & compliance
Overload Protection System
Low oil and overload protection, CO monitoring
Not available
Low Oil ProtectionYesYes
Carbon Monoxide MonitoringYesYes
Included equipment
Mobility Components
Wheel kit
Not available
Included Accessories
Funnel, tool kit, propane hose, battery, and wheel kit
Wheel kit
Additional specs
Summary
The DuroStar DS11000DX is a 9,000-watt dual fuel generator built around a 457cc OHV engine with cast iron sleeves. This wattage places it squarely in the home backup and light job site category. On gasoline, it runs 9 hours at half load and 19 hours at quarter load. On propane, runtime drops to 3.5 hours at half load and 7 hours at quarter load, making gasoline the practical choice for extended outages. The dual fuel option gives users flexibility when propane is more accessible or economical, though gasoline delivers longer operating windows per tank. At 74 dB, the noise level sits in the moderate range for this power class, meaning it will be audible but not prohibitively loud in residential settings. The 8.3-gallon fuel tank combined with the quarter-load runtime means users can stretch a single fill to nearly a full day of light operation.
The ECHO EGi-4000 is a 3,400-watt inverter generator built around a 212 cc OHV 4-stroke engine. This wattage class handles essential household appliances during outages, job site tools, and RV systems. The 4,000-watt peak capacity means it can start larger equipment like air compressors or circular saws without stalling. Because the unit runs on gasoline with a 3.3-gallon tank, users will find refueling cycles manageable for weekend trips or short-term backup scenarios. The inverter technology protects laptops, phones, and other sensitive electronics from power fluctuations. A 10-hour runtime at 50% load means users can operate mid-range loads like a refrigerator or power tools for most of a workday without refueling. The 86-pound weight and included wheel kit make it movable for one person, though not effortless.
  • Most Powerful
    DuroStar DS11000DX
    9000W running
  • Quietest
    ECHO EGi-4000
    67 dB
  • Longest Runtime
    ECHO EGi-4000
    10h at 50% load
Where to buy
Prices can change. We update these automatically.
DuroStar DS11000DX
Store links
No links yet.
ECHO EGi-4000
Store links
No links yet.
Disclosure: Some links may be affiliate links. Specs and comparisons are never hidden.