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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.

  • Generac #8150 GP5500E
  • Westinghouse WGen5300sc
  • Model #8150 GP5500E
    Model #8150 GP5500E

    Generac 5,500W Gas Generator

    5500W
    Running
    0 dB
    Noise
    View details
  • Model WGen5300sc
    Model WGen5300sc

    Westinghouse 5,300W Gas Generator

    5300W
    Running
    68 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
SpecificationGenerac #8150 GP5500EWestinghouse WGen5300sc
General
Product type
Generator
Generator
Fuel
Gasoline
Gasoline
InverterNoNo
Parallel capableNoNo
RV readyNoYes
Running watts
Winner: Winner: 5500 W
5300 W
Starting watts
Winner: Winner: 6875 W
6600 W
Noise (lower limit)
0 dB
Winner: Winner: 68 dB
Weight
163 lbs
Winner: Winner: 133.8 lbs
Run time @50% load
10.5 h
Winner: Winner: 11 h
Run time @25% load
13.4 h
14.5 h
Fuel tank
5.4 gal
4.7 gal
Fuel gaugeYesYes
Approx. dimensions (L × W × H)
30 x 27 x 25
23.2 x 20.1 x 19.1
Electrical
Voltage (AC)
120/240
120/240
Voltage (DC)
Not available—
Not available—
GFCI outletsYesNo
Covered outletsYesYes
Automatic Voltage RegulationYesYes
THD
Not available—
23 %
Engine
Engine
Generac OHV 4-stroke
274 cc OHV 4-stroke, cast iron sleeve
Alternator
Not available—
Not available—
Starting system
Recoil, Electric
Recoil, Electric
Warranty
Warranty
2 years
3 years
Power by fuel
GasolineNot available—Not available—
Running watts
5500 W
5300 W
Starting watts
6875 W
6600 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
11 h
Run time @25% load
Not available—
14.5 h
Other
Data center
Not available—
Not available—
Indicators
false
false
Compliance
CARB, EPA
CARB, EPA
Security
Not available—
Not available—
Spark arrestorYesYes
Neutral
true
Floating
UPC
696471104639
850011336724
Core / High-priority specs
Running Watts (Gasoline)
5500
5300
Starting Watts (Gasoline)
6875
6600
Runtime @ 50% Load (Gasoline)
10.5
11
Runtime @ 25% Load (Gasoline)
Not available—
14.5
AC Outlet Types
2x Duplex 120V 20A (5-20R) GFCI1x 120/240V 30A (L14-30R)
1x Duplex 120V 20A (5-20R)1x 120V 30A (TT-30R)1x 120/240V 30A (L14-30R)
Electrical & power
Frequency
60
60
Engine & construction
Engine Type
OHV 4-stroke
OHV 4-stroke
Engine Displacement
298
274
Cylinder Sleeve
Not available—
cast iron sleeve
Engine Oil Type
5W-30
SAE 10W-30
Runtime & fuel system
Runtime @ 25% Load (Gasoline)
Not available—
14.5
Runtime @ 50% Load (Gasoline)
10.5
11
Safety & compliance
Overload Protection System
Low oil and overload protection
Low oil and overload protection
Low Oil ProtectionYesYes
Carbon Monoxide MonitoringYesYes
Included equipment
Mobility Components
Yes
Not available—
Starting Components
Recoil, Electric
Recoil, Electric
Included Accessories
Oil, Funnel, Tool Kit, Battery, and Wheel Kit
Oil, funnel, tool kit, battery, and wheel kit
Warranty & identification
Commercial Warranty
2
3
Part Number
8150
Not available—
Additional specs
Summary
The Generac GP5500E is a 5,500 watt gasoline generator built to power whole house essentials during outages or on job sites. Its 6,875 starting watts handle motor driven appliances like well pumps and air conditioners that demand heavy inrush current. For homeowners and contractors who want reliable backup without crossing into stationary generator territory, the GP5500E delivers meaningful output with the refueling simplicity of gasoline.
The Westinghouse WGen5300sc is a portable gas-powered generator delivering 6,600 peak watts and 5,300 running watts, ideal for home backup and RV use.
  • Most Powerful
    Generac #8150 GP5500E
    5500W running
  • Quietest
    Westinghouse WGen5300sc
    68 dB
  • Longest Runtime
    Westinghouse WGen5300sc
    11h at 50% load
Where to buy
Prices can change. We update these automatically.
Generac #8150 GP5500E
Store links
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Westinghouse WGen5300sc
Store links
No links yet.
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