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WEN GN625i Spec Review

The WEN GN625i is an open frame portable inverter generator with a rated wattage of 5000 W and a starting wattage of 6250 W.

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Picture 1 of the WEN GN625i
Picture 2 of the WEN GN625i
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Description

Keep your family safe during power outages and natural disasters with the WEN WEN 6,250-Watt RV and Transfer-Switch Ready Inverter Generator. The included inverter provides clean energy, free of voltage spikes and drops. (source: WEN (opens in a new tab))

Zoom on the WEN GN625i

In summary, the WEN GN625i is a portable inverter generator especially useful for:

  • RV travellers who wish to upgrade their experience to another level
  • People occasionally participating in sporting competitions, open-air performances and outdoor festivals
  • Food van owners who know that just a short power outage could lose them hundreds of dollars
  • Homeowners in need of an emergency backup power for their essentials
  • Camping and tailgating hobbyists looking for a portable power source

In the sections ahead, the power characteristics, availability of various outlets, the portability, and any additional features of the device shall be discussed, including its emission compliance information.

Power & Run Time

The WEN GN625i's design includes a gasoline-fueled 301 cc OHV 4-stroke engine. With a 120/240V output, it gives a running wattage of 5000W and also a peak wattage of 6250W.

Its starting mechanism is based on a conventional pull-start mechanism.

With a fuel capacity of 4.2 gallons, the GN625i may run for around 8.1 hours at 50% load with a full tank (fuel consumption around 0.52 GPH).

Sensitive electronics can be safely plugged in the AC outlets, as the GN625i produces a clean sine wave, with a <1.5% Total Harmonic Disruption (THD).

Outlets

The control panel features the upcoming 6 AC outlets:

Two Duplexes 120V 20A (5-20R)
120V 30A (TT-30R) receptacle
120/240V 30A (L14-30R) receptacle

In addition, it provides 2 DC outlets: there's two 5V USB ports allowing you to conveniently charge electronics such as mobile phones and tablets.

With its TT-30R receptacle (TT as in 'Travel Trailer'), this WEN generator is RV Ready. In addition, as it features a twist-lock L14-30R receptacle, the GN625i is transfer switch ready: in case of a power outage, you will be easily able to connect it to a breaker box and power your household.

Portability

With its dimensions of L27 x W25 x H24 in, the conventional, open frame design of the WEN GN625i offers stability and allows the generator to be raised above ground level. The device has been designed for tough environments and demanding outdoor use.

While the generator is considered to be technically 'portable' (in the sense that you can move it), manually lifting and transporting it may be challenging, due to its high weight of 119.5 lbs. However, this lack of maneuverability is compensated by its wheel kit and its folding handle, with which you can conveniently shift it, once it's on the ground.

Features

Panel of the WEN GN625i

The GN625i's control panel

The GN625i and its control panel include a convenient meter showing you voltage, frequency and lifetime hours. This feature comes handy when monitoring its status and activity.

In addition to this info, the device’s light indicators will display if the generator is on overload, the generator is ready and the oil level is too low.

From a security standpoint, the product offers an automatic low oil shut-off and an overload protection (circuit breaker), allowing you to use it with a peace of mind.

Besides the usual set of documentation and owner's manual (opens in a new tab) to get you promptly started, WEN also included a tool kit in the GN625i's packaging.

Emissions

The WEN GN625i is EPA-approved and CARB-compliant. It can therefore be sold and purchased in all 50 states, including California.

Moreover, it features a spark arrestor, which makes it suitable for use in forested areas.

The WEN GN625i versus other generators

The following charts are provided to give you an idea of how some of the key specs of the WEN GN625i compare to generators of similar power (between 4500 and 5500 W).

  • Regarding its weight, the WEN GN625i only weighs in at 119.5 pounds, which means it's one of the lighter generators in the 4500-5500 rated wattage range. If weight is your top priority, one of the champions in this power category is the Westinghouse WGen5300v, weighing just 107 pounds.
  • As far as autonomy is concerned, providing around 8.1 hours of runtime with a full tank at a 50% load, the GN625i falls into the low end in comparison with other devices of a comparable power output. If concerned with autonomy, one of the products of a comparable power output, which offers the highest run time, is the Cat RP5500, boasting with around 15 hours.
  • Run times are important, yet thanks to their dependence on the fuel capacity, they should be judged along with the fuel consumption of the device. This inverter generator has an estimated fuel consumption of roughly 0.52 GPH (gallon per hour) at a 50% load, rendering it somewhat average compared to devices of a similar output. If not satisfied with the afore-mentioned fuel consumption, you may wish to check out the Westinghouse WGen5300v. With a fuel consumption of as little as 0.35 GPH, it is one of the most efficient generators currently on the market.

Price comparison

As you can see from this interactive chart, when compared to other 4500-5500W generators, the WEN GN625i is on the cheap side of the price range.

It can therefore be a really good buy if you're looking to acquire a budget generator.

The bottom line

STRENGTHS:
  • Inexpensive
  • RV Ready
  • Inverter
  • Lightweight for its kind (119.5 lbs)
AVERAGE SPECS:
  • Decent fuel efficiency
WEAKNESSES:
  • No electric start
  • No parallel ports
  • Relatively low run time

Do you own the WEN GN625i and agree (or disagree) with these strengths and weaknesses?

Let us know and write your own review.

Features and Specifications

General
InverterYes
PortableYes
Parallel capableNo
RV readyYes
FuelGasoline
Engine301 cc OHV 4-stroke
Starting systemRecoil
Power
VoltageAC: 120/240V 60 Hz, DC: 5V
Running watts5000 W
Starting watts6250 W
Running amps (@120/240V)41.7/20.8 amps
Peaks amps (@120/240V)52.1/26 amps
Run time @50% load8.1 h
Run time @25% loadUnknown
Features
GFCI outletsNo
Covered outletsYes
Automatic Voltage RegulationInverter
AC outlets
  • 2x Duplex 120V 20A (5-20R)
  • 1x 120V 30A (TT-30R)
  • 1x 120/240V 30A (L14-30R)
DC outlets2x 5V USB port
Data centerVFT
IndicatorsLow oil, overload and output ready
Fuel tank4.2 gal
Fuel gaugeNo
Misc
Weight119.5 lbs
Approx. dimensions (L x W x H)27 x 25 x 24 in
Noise (lower limit)Unknown
THD< 1.5%
EmissionsCARB, EPA
SecurityLow oil and overload protection
Spark arrestorYes
NeutralFloating
Accessories includedTool kit and wheel kit
Warranty2 years

Unlike many websites, we did our best to research each of the specs above. That being said, we are not immune to making the occasional mistake or omission. Should you notice any missing or incorrect values, don't hesitate to suggest improvements so we can address the issue.

About WEN

WEN Products, founded by Nick Anton in 1951, is an American power tool manufacturer and distributor, which claims to have a part in the development of modern chainsaw, soldering devices and wet sharpeners, through its research in random orbital technology. The Illinois based company expanded its distribution network to include various power tools, such as presses, drills and of course, power generators. As a distributor, WEN’s portfolio largely consists of branded products of different manufacturers, imported from Asia.

Warranty Information

The WEN GN625i is covered under a warranty for up to 2 years. This warranty may be limited and may not cover all parts of the generator.
For more information about the warranty of WEN generators, please consult WEN's warranty policies (opens in a new tab). Alternatively, you can also contact their Customer Support: 1-847-429-9263.

Questions & Answers

What can it power?
Examples of items that can be simultaneously powered.
The examples below are based on a maximum load of 80% and estimated wattages. For a more accurate estimation, use our generator sizing calculator.
ItemRunning WattsStarting Watts
At homeSump pump (1/2 hp)10502150
Furnace fan (1/2 hp)8752350
Refrigerator (energy star)1921192
Hair dryer18001900
Set of 5 LED light bulbs5555
Cell phone charger2020
Total3992 W5467 W
For campingRadiant heater13001300
RV refrigerator180600
Hair dryer18001900
Rice cooker650650
Set of 5 LED light bulbs5555
Total3985 W4405 W
For workTable saw18004500
Grinder14002500
Electric fence (25 miles)250250
Bug zapper8080
Total3530 W6230 W

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