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.

  • Powerhorse 11050
  • Yamaha EF5500DE
  • No image
    Model 11050

    Powerhorse 8,400W Gas Generator

    8400W
    Running
    78 dB
    Noise
    View details
  • Model EF5500DE
    Model EF5500DE

    Yamaha 4,500W Gas Generator

    4500W
    Running
    74.1 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
SpecificationPowerhorse 11050Yamaha EF5500DE
General
Product type
Generator
Generator
Fuel
Gasoline
Gasoline
InverterNoNo
Parallel capableNoNo
RV readyNoNo
Running watts
Winner: Winner: 8400 W
4500 W
Starting watts
Winner: Winner: 11050 W
5500 W
Noise (lower limit)
78 dB
Winner: Winner: 74.1 dB
Weight
260 lbs
Winner: Winner: 238.1 lbs
Run time @50% load
8.5 h
Winner: Winner: 13.5 h
Run time @25% load
Not available
Not available
Fuel tank
6.6 gal
6.9 gal
Fuel gaugeNoYes
Approx. dimensions (L × W × H)
31.7 x 21.7 x 24.2
29.1 x 29 x 31.5 in
Electrical
Voltage (AC)
120/240V
120/240V 60 Hz
Voltage (DC)
Not available
Not available
GFCI outletsNoYes
Covered outletsNoNo
Automatic Voltage RegulationNoYes
THD
Not available
Not available
Engine
Engine
Not available
Yamaha MZ360 OHV 4-stroke
Alternator
Not available
Not available
Starting system
Not available
Recoil, Electric
Warranty
Warranty
2 years
3 years
Power by fuel
GasolineNot availableNot available
Running watts
Not available
4500 W
Starting watts
Not available
5500 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
Not available
13.5 h
Run time @25% load
Not available
Not available
Other
Data center
Not available
Not available
Indicators
true
true
Compliance
Not available
CARB, EPA
Security
Not available
Not available
Spark arrestorNoYes
Neutral
Not available
true
UPC
Not available
765053823098
Core / High-priority specs
Running Watts (Gasoline)
Not available
4500
Starting Watts (Gasoline)
Not available
5500
Runtime @ 50% Load (Gasoline)
Not available
13.5
AC Outlet Types
Not available
2x Duplex 120V 20A (5-20R) 1x 120V 30A (L5-30R)1x 120/240V 30A (L14-30R)
Electrical & power
Frequency
60
60
Engine & construction
Engine Type
Not available
OHV 4-stroke
Engine Displacement
457
358
Runtime & fuel system
Runtime @ 50% Load (Gasoline)
Not available
13.5
Controls & display
Display Type
Not available
Data center
Safety & compliance
Overload Protection System
Not available
Low oil and overload protection
Low Oil ProtectionYesYes
Carbon Monoxide MonitoringNoYes
Included equipment
Documentation
Not available
Data center
Included Accessories
Not available
Tool kit, battery, and wheel kit
Warranty & identification
Part Number
Not available
EF55DEX
Additional specs
Summary
The Powerhorse 11050 is a portable generator delivering 11,050 surge watts and 8,400 rated watts, featuring a 457cc engine, electric start, and a 6.6-gallon fuel tank.
The Yamaha EF5500DE is a versatile dual 120/240 volt generator, ideal for emergency backup power for home, cottage, or business, as well as primary power on job sites. It features a 358cc OHV engine, electric start, and offers 5500 watts maximum AC output with outstanding fuel efficiency.
  • Most Powerful
    Powerhorse 11050
    8400W running
  • Quietest
    Yamaha EF5500DE
    74.1 dB
  • Longest Runtime
    Yamaha EF5500DE
    13.5h at 50% load
Where to buy
Prices can change. We update these automatically.
Powerhorse 11050
Store links
No links yet.
Yamaha EF5500DE
Store links
No links yet.
Disclosure: Some links may be affiliate links. Specs and comparisons are never hidden.