Skip to content
Skip to main content
WEN 56477i vs Westinghouse iGen5000

WEN 56477i vs Westinghouse iGen5000

Compare WEN 56477i vs Westinghouse iGen5000: similar power, but iGen5000 is quieter and longer-running, while WEN is lighter and simpler.

  • WEN 56477i
  • Westinghouse iGen5000

Comparison Overview

Noise and run time are the big separators here. The Westinghouse iGen5000 is rated at 52 dB, noticeably quieter than the WEN 56477i at 62 dB, and it stretches fuel much further with up to 18 hours at 25% load (and 15 hours at 50%). If you want longer overnight coverage or a calmer campsite or RV setup, that difference matters in day to day use.

Power output is close enough to be apples-to-apples for most buyers. The WEN delivers 4000 running watts and 4800 starting watts, while the Westinghouse is 3900 running watts with a higher 5000 starting watts for brief motor starts. Both are inverter generators, so they are better suited for sensitive electronics than traditional open-frame units.

Portability tilts the other way. The WEN weighs 72.7 lb, much easier to lift into a vehicle than the Westinghouse at 104.7 lb. Both include a 3-year warranty, so the decision usually comes down to whether you value quieter, longer operation (Westinghouse) or easier handling at a lower carry weight (WEN).

Key takeaways

  • Westinghouse iGen5000 runs quieter at 52 dB versus WEN 56477i at 62 dB.
  • Westinghouse iGen5000 offers up to 18 hours at 25% load, 15 hours at 50%.
  • WEN 56477i is much lighter at 72.7 lb versus Westinghouse at 104.7 lb.
  • Power is similar: WEN 4000 running watts, Westinghouse 3900 running watts.
  • Starting surge favors Westinghouse: 5000 starting watts versus WEN at 4800.

Best use cases

Choose the WEN 56477i if you want a more manageable generator to move around frequently. At 72.7 lb, it is the easier pick for tossing in a truck for weekend projects, tailgates, or occasional camping where you are willing to trade some noise for simpler portability. Its 4000 running watts is plenty for a mix like a fridge, lights, device charging, and a microwave used one at a time, and 4800 starting watts can handle many common motor starts. The main tradeoff is endurance and sound, with 62 dB being more noticeable in quiet settings, and the listed 7 hours at 50% load meaning you may refuel more often during longer outages.

Choose the Westinghouse iGen5000 if your priority is a calmer, longer-running setup for RV use, camping with neighbors nearby, or home backup where you want fewer refueling interruptions. The 52 dB rating is a meaningful comfort upgrade, and the long published run times (up to 18 hours at 25%, 15 hours at 50%) are ideal for overnight operation or extended outages when you are trying to conserve fuel and attention. It also has a higher 5000 starting watts, which can help with brief startup surges from appliances. The honest downside is the bulk: at 104.7 lb, it is harder to lift, store, and reposition, so it fits best when it can live on a pad, in a garage corner, or roll short distances rather than being carried often.

Verdict & recommendation

If your priority is quiet operation and long, low-hassle run time, the Westinghouse iGen5000 is the better fit on paper, especially for RVs, campsites, and longer home backup stretches where refueling less often is a real quality-of-life upgrade. If your priority is easier lifting and moving, the WEN 56477i makes more sense, while still delivering essentially the same day-to-day usable power with 4000 running watts.

Both are inverter generators with a 3-year warranty, so neither choice is out of place for electronics and general household loads. Pick the Westinghouse for quieter, longer sessions, and pick the WEN when portability and simpler handling matter more than maximum runtime.

Last updated February 23, 2026

  • Model 56477i
    Model 56477i

    WEN 4,000W Gas Generator

    4000W
    Running
    62 dB
    Noise
    View details
  • Model iGen5000
    Model iGen5000

    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 iGen5000
General
Product type
Generator
Generator
Fuel
Gasoline
Gasoline
InverterYesYes
Parallel capableYesYes
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
104.7 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 gaugeYesYes
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 60 Hz
Voltage (DC)
12
5
GFCI outletsNoNo
Covered outletsYesYes
Automatic Voltage RegulationYesYes
THD
1.2 %
≤ 3% %
Engine
Engine
224 cc OHV 4-stroke
Westinghouse OHV 4-stroke
Alternator
Not available
Not available
Starting system
Recoil
Recoil, Electric, Remote
Warranty
Warranty
3 years
3 years
Power by fuel
GasolineNot availableNot available
Running watts
4000 W
3900 W
Starting watts
4800 W
5000 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
7 h
15 h
Run time @25% load
Not available
18 h
Other
Data center
Not available
Not available
Indicators
true
true
Compliance
EPA
EPA, ANSI/PGMA G300-2023
Security
Not available
Not available
Spark arrestorYesYes
Neutral
Floating
Floating
UPC
44459564775
855464003902
Core / High-priority specs
Running Watts (Gasoline)
4000
3900
Starting Watts (Gasoline)
4800
5000
Runtime @ 50% Load (Gasoline)
7
15
Runtime @ 25% Load (Gasoline)
Not available
18
AC Outlet Types
2x Duplex 120V 20A (5-20R) 1x 120V 30A (TT-30R)
1x Duplex 120V 20A (5-20R); 1x 120V 30A (TT-30R)
Electrical & power
Frequency
60
60
Engine & construction
Engine Type
OHV 4-stroke
OHV 4-stroke
Engine Displacement
224
224
Engine Oil Type
Not available
10W-30
Runtime & fuel system
Runtime @ 25% Load (Gasoline)
Not available
18
Runtime @ 50% Load (Gasoline)
7
15
Safety & compliance
Overload Protection System
Low oil, overload and low fuel protection
Low oil and overload protection
Low Oil ProtectionYesYes
Carbon Monoxide MonitoringNoNo
Included equipment
Included Accessories
Oil, funnel, and tool kit
Oil, funnel, tool kit, key fob, battery charger, and battery
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 iGen5000 is a gas-powered portable inverter generator delivering 5,000 peak watts and 3,900 running watts. It features a compact design with a telescoping handle and never-flat wheels for easy portability, making it suitable for recreational activities and emergency backup power.
  • Most Powerful
    WEN 56477i
    4000W running
  • Quietest
    Westinghouse iGen5000
    52 dB
  • Longest Runtime
    Westinghouse iGen5000
    15h at 50% load
Where to buy
Prices can change. We update these automatically.
WEN 56477i
Store links
No links yet.
Westinghouse iGen5000
Store links
No links yet.
Disclosure: Some links may be affiliate links. Specs and comparisons are never hidden.