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WEN 56477i vs Westinghouse iGen5000c

WEN 56477i vs Westinghouse iGen5000c

Compare WEN 56477i and Westinghouse iGen5000c: similar power, but Westinghouse is quieter and longer-running, while WEN is lighter and simpler.

  • WEN 56477i
  • Westinghouse iGen5000c

Comparison Overview

Noise and runtime are the biggest real-world separators here. The Westinghouse iGen5000c is rated at 52 dB, noticeably quieter than the WEN 56477i at 62 dB, and it also stretches fuel much farther with up to 18 hours at 25% load (and 15 hours at 50%), versus 7 hours at 50% for the WEN.

Power is close enough to be apples-to-apples for most households and RVs. The WEN delivers 4000 running watts and 4800 starting watts, while the Westinghouse delivers 3900 running watts and 5000 starting watts. In practice, both can handle common essentials like a refrigerator, lights, fans, a TV, and battery charging, with the Westinghouse having a bit more surge cushion for motor starts.

Portability flips the script. The WEN is much easier to move at 72.7 lb compared with 105.8 lb for the Westinghouse. Both are inverter generators and both include a 3-year warranty, so the decision usually comes down to whether you value lighter weight (WEN) or quieter, longer operation (Westinghouse).

Key takeaways

  • Westinghouse iGen5000c runs quieter at 52 dB versus WEN 56477i at 62 dB.
  • Westinghouse iGen5000c offers up to 18 hours at 25% load, 15 hours at 50%.
  • WEN 56477i is much lighter at 72.7 lb compared with Westinghouse at 105.8 lb.
  • Power is similar: WEN 4000 running watts, Westinghouse 3900 running watts.
  • Westinghouse has higher surge capacity at 5000 starting watts versus WEN at 4800.

Best use cases

Choose the WEN 56477i if you want strong everyday power in a package that is easier to lift, load, and store. At 72.7 lb, it is the more realistic option for solo handling, tossing into a truck bed, or moving around a garage without feeling like a major project. With 4000 running watts and 4800 starting watts, it is a good fit for short-to-medium outage coverage where you plan to run a few key circuits at a time, or for tailgating and weekend use where you are not trying to run all day. The main tradeoffs are that it is louder at 62 dB and its published runtime is shorter at 7 hours at 50% load, so you may refuel more often during extended outages.

Choose the Westinghouse iGen5000c if your priority is a quieter generator that can run for long stretches with fewer fuel stops. Its 52 dB rating is a meaningful comfort upgrade for camping, RV use in closer quarters, or neighborhoods where noise matters. The long runtimes (up to 18 hours at 25% load and 15 hours at 50%) make it especially appealing for overnight operation or multi-day outages when you want to set it up and check on it less often. You also get 5000 starting watts, which can help with appliances that have a bigger startup surge. The honest downside is portability: at 105.8 lb, it is more of a roll-it-and-park-it generator than something most people will want to lift frequently.

Verdict & recommendation

If your priority is quieter operation and long, low-hassle run time, the Westinghouse iGen5000c is the better match, especially for camping, RVing, or extended outages where you want fewer refuels. If your priority is easier handling and a lighter generator that still delivers around 4000 running watts, the WEN 56477i makes more sense for occasional backup power and portable weekend use.

Both are gasoline inverter generators with a 3-year warranty and similar real-world capacity for essentials. The practical choice is simple: pick Westinghouse for quiet and endurance, pick WEN for easier portability and straightforward power.

Last updated March 5, 2026

  • Model 56477i
    Model 56477i

    WEN 4,000W Gas Generator

    4000W
    Running
    62 dB
    Noise
    View details
  • Model iGen5000c
    Model iGen5000c

    Westinghouse 3,900W Gas Generator

    3900W
    Running
    52 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
SpecificationWEN 56477iWestinghouse iGen5000c
General
Product type
Generator
Generator
Fuel
Gasoline
Gasoline
InverterYesYes
Parallel capableYesNo
RV readyYesYes
Running watts
Winner: Winner: 4000 W
3900 W
Starting watts
4800 W
Winner: Winner: 5000 W
Noise (lower limit)
62 dB
Winner: Winner: 52 dB
Weight
Winner: Winner: 72.7 lbs
105.8 lbs
Run time @50% load
7 h
Winner: Winner: 15 h
Run time @25% load
Not available
18 h
Fuel tank
1.9 gal
3.4 gal
Fuel gaugeYesNo
Approx. dimensions (L × W × H)
23.8 x 12.6 x 22.1
24.5 x 17.5 x 20
Electrical
Voltage (AC)
120
120V
Voltage (DC)
12
Not available
GFCI outletsNoNo
Covered outletsYesNo
Automatic Voltage RegulationYesNo
THD
1.2 %
≤ 3% %
Engine
Engine
224 cc OHV 4-stroke
Not available
Alternator
Not available
Not available
Starting system
Recoil
Not available
Warranty
Warranty
3 years
3 years
Power by fuel
GasolineNot availableNot available
Running watts
4000 W
Not available
Starting watts
4800 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
7 h
Not available
Run time @25% load
Not available
Not available
Other
Data center
Not available
Not available
Indicators
true
Not available
Compliance
EPA
Not available
Security
Not available
Not available
Spark arrestorYesNo
Neutral
Floating
Not available
UPC
44459564775
Not available
Core / High-priority specs
Running Watts (Gasoline)
4000
Not available
Starting Watts (Gasoline)
4800
Not available
Runtime @ 50% Load (Gasoline)
7
Not available
AC Outlet Types
2x Duplex 120V 20A (5-20R) 1x 120V 30A (TT-30R)
Not available
Electrical & power
Frequency
60
60
Engine & construction
Engine Type
OHV 4-stroke
Not available
Engine Displacement
224
224
Engine Oil Type
Not available
10W-30
Runtime & fuel system
Runtime @ 50% Load (Gasoline)
7
Not available
Safety & compliance
Overload Protection System
Low oil, overload and low fuel protection
Not available
Low Oil ProtectionYesYes
Carbon Monoxide MonitoringNoYes
Included equipment
Included Accessories
Oil, funnel, and tool kit
Not available
Warranty & identification
Commercial Warranty
3
Not available
Additional specs
Summary
The WEN 56477i is a 4800-watt portable inverter generator designed for RV use, offering clean power suitable for sensitive electronics, with a quiet operation and features like fuel shutoff to maximize lifespan.
The Westinghouse iGen5000c is a portable inverter generator designed for both recreational and emergency use. It offers 5,000 peak watts and 3,900 running watts, making it suitable for powering a variety of appliances and electronic devices. Its compact design, combined with features like remote electric start and an LED data center, enhances user convenience.
  • Most Powerful
    WEN 56477i
    4000W running
  • Quietest
    Westinghouse iGen5000c
    52 dB
  • Longest Runtime
    Westinghouse iGen5000c
    15h at 50% load
Where to buy
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WEN 56477i
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Westinghouse iGen5000c
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