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WEN 56455i vs Westinghouse iGen5000

WEN 56455i vs Westinghouse iGen5000

Compare WEN 56455i and Westinghouse iGen5000 inverter generators for home backup, RV, and camping, focusing on runtime, noise, and power.

  • WEN 56455i
  • Westinghouse iGen5000

Comparison Overview

The biggest real world difference is how long they can run and how quiet they are while doing it. The Westinghouse iGen5000 is rated at 52 dB and delivers 18 hours at 25% load (and 15 hours at 50%), which is a major advantage for overnight use, RV trips, and longer outages where you want fewer refueling breaks.

The WEN 56455i is still a capable inverter option with 3500 running watts and 4500 starting watts, but it is louder at 57 dB and its listed runtime is 8.5 hours at 50% load (no 25% runtime provided). In practice, that points to shorter stretches between refills, especially if you are running a steady load.

On power, the iGen5000 also has the edge at 3900 running watts and 5000 starting watts, giving a bit more breathing room for starting surges from appliances. Weight is close, about 99.2 lb for the WEN versus 104.7 lb for the Westinghouse, so neither is truly “light.” If you want longer runtime, quieter operation, and a longer 3 year warranty, the Westinghouse fits better, while the WEN can make sense if you are satisfied with slightly less power and shorter run time.

Key takeaways

  • Westinghouse iGen5000 runs 18 hours at 25% load, 15 hours at 50%.
  • Westinghouse iGen5000 is quieter at 52 dB versus WEN 56455i at 57 dB.
  • Westinghouse iGen5000 delivers 3900 running watts, 5000 starting watts.
  • WEN 56455i delivers 3500 running watts, 4500 starting watts for essentials.
  • WEN 56455i weighs 99.2 lb, slightly lighter than iGen5000 at 104.7 lb.
  • Both are gasoline inverter generators designed for cleaner power and electronics.

Best use cases

Choose the WEN 56455i if you want a solid inverter generator for occasional use where you do not need maximum runtime. It can be a practical fit for weekend camping (especially if you are not in ultra quiet campgrounds), tailgating, or as a budget minded home backup option to keep essentials going in shorter outages. With 3500 running watts and 4500 starting watts, it is typically enough for a refrigerator, lights, device charging, and a few small appliances, as long as you manage what runs at the same time. The tradeoff is convenience: at 57 dB it is noticeably louder than the Westinghouse, and the listed 8.5 hours at 50% load suggests more frequent refueling during longer runs.

Choose the Westinghouse iGen5000 if your priority is longer, quieter operation and a bit more power headroom. The combination of 3900 running watts and 5000 starting watts is helpful when you are dealing with startup surges, like a fridge compressor kicking on, or when you want to run more things at once without constantly juggling loads. Its 52 dB rating is friendlier for RV parks, campgrounds, and nighttime use, and the long runtimes, 18 hours at 25% load and 15 hours at 50%, are a big quality of life upgrade for extended outages or multi day trips. The tradeoff is it is slightly heavier at 104.7 lb, and you are still dealing with a large portable unit that is best moved on wheels rather than carried.

Verdict & recommendation

If your priority is long runtime with fewer refueling stops, plus quieter operation for overnight use, the Westinghouse iGen5000 is the more comfortable day to day companion, and it adds a longer 3 year warranty. If your priority is simply getting reliable inverter power for shorter runs and you are fine with a bit less output and more noise, the WEN 56455i can still cover many common needs.

Neither is a “grab and go” lightweight generator, so plan around wheeling and storage space either way. Pick based on how long you expect to run between refills, how sensitive your setting is to noise, and whether the extra 400 running watts and 500 starting watts on the Westinghouse will reduce load juggling for your setup.

Last updated March 10, 2026

  • Model 56455i
    Model 56455i

    WEN 3,500W Gas Generator

    3500W
    Running
    57 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 56455iWestinghouse iGen5000
General
Product type
Generator
Generator
Fuel
Gasoline
Gasoline
InverterYesYes
Parallel capableYesYes
RV readyYesYes
Running watts
3500 W
Winner: Winner: 3900 W
Starting watts
4500 W
Winner: Winner: 5000 W
Noise (lower limit)
57 dB
Winner: Winner: 52 dB
Weight
Winner: Winner: 99.2 lbs
104.7 lbs
Run time @50% load
8.5 h
Winner: Winner: 15 h
Run time @25% load
Not available
18 h
Fuel tank
2.2 gal
3.4 gal
Fuel gaugeYesYes
Approx. dimensions (L × W × H)
23.2 x 18 x 20.1
24.5 x 17.5 x 20
Electrical
Voltage (AC)
120
120V 60 Hz
Voltage (DC)
12
5
GFCI outletsNoNo
Covered outletsNoYes
Automatic Voltage RegulationYesYes
THD
1.2 %
≤ 3% %
Engine
Engine
212 cc OHV 4-stroke
Westinghouse OHV 4-stroke
Alternator
Not available
Not available
Starting system
Recoil, Electric
Recoil, Electric, Remote
Warranty
Warranty
2 years
3 years
Power by fuel
GasolineNot availableNot available
Running watts
3500 W
3900 W
Starting watts
4500 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
8.5 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
44459564553
855464003902
Core / High-priority specs
Running Watts (Gasoline)
3500
3900
Starting Watts (Gasoline)
4500
5000
Runtime @ 50% Load (Gasoline)
8.5
15
Runtime @ 25% Load (Gasoline)
Not available
18
AC Outlet Types
1x 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
212
224
Engine Oil Type
Not available
10W-30
Runtime & fuel system
Runtime @ 25% Load (Gasoline)
Not available
18
Runtime @ 50% Load (Gasoline)
8.5
15
Safety & compliance
Overload Protection System
Low oil and overload protection
Low oil and overload protection
Low Oil ProtectionYesYes
Carbon Monoxide MonitoringNoNo
Included equipment
Included Accessories
Funnel, tool kit, and battery
Oil, funnel, tool kit, key fob, battery charger, and battery
Additional specs
Summary
The WEN 56455i is a super quiet 4500-watt RV-ready portable inverter generator featuring a 212cc engine, electric start, and fuel shut-off, designed to provide clean power for sensitive electronics.
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
    Westinghouse iGen5000
    3900W running
  • Quietest
    Westinghouse iGen5000
    52 dB
  • Longest Runtime
    Westinghouse iGen5000
    15h at 50% load
Where to buy
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WEN 56455i
Store links
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Westinghouse iGen5000
Store links
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