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WEN DF400iX - 3200/4000W Dual Fuel Inverter Generator With Electric Start

The WEN DF400iX is a quiet and compact dual fuel inverter generator with a rated wattage of 3,200 W and a starting wattage of 4,000 W. (Read full specs)

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Description

Zoom on the WEN DF400iX

The WEN DF400iX is the newer version of the popular DF400i. It's a quiet and compact portable inverter generator especially useful for:

  • RV travellers wishing to enhance their freedom and nomad lifestyle
  • People occasionally participating in outdoor fairs, festivals or events
  • DIYers who wish to improve their efficiency with tools
  • Homeowners in need of an emergency backup power for their essentials
  • Camping and tailgating buffs looking to enhance their experience

In the following paragraphs, we shall explore the power characteristics, available outlets, portability, and any additional features of the device.

Power & Run Time

Delivering 120V, the WEN DF400iX is enhanced by dual-fuel technology, providing power and versatility. Running on gasoline, it boasts a running wattage of 3,200W and a starting wattage of 4,000W. Alternatively, when propane-powered, it delivers 2,900 running watts and 3,200 starting watts. Moreover, the parallel capability (parallel kit not included) allows for increasing of power output when paired with another similar or compatible unit, providing increased energy capacity and reliability for diverse needs.

WEN’s Auto Fuel Selection technology automatically selects the fuel source (LPG or gasoline) depending on availability and prioritizes LPG. Thus, if a propane tank with enough LPG is connected, the generator will automatically use LPG. If no propane tank is connected, or if there is not enough LPG remaining in the tank, the generator will use gasoline.

Featuring a noise rating of 58 dBA (less noisy than rainfall), the inverter generator is equipped with both a traditional recoil pull-start mechanism and a convenient and efficient electric starter (battery included) for starting.

In terms of its run time capability, the DF400iX, furnished with a 2.2 gallons fuel tank, can maintain operations for around 8.5 hours at 50% load on a full tank of gasoline (with fuel consumption averaging 0.26 gallons per hour). It also provides around 9 hours (on a 20 lbs tank - propane consumption around 0.52 GPH) of operation with propane.

Sensitive electronics can be safely plugged in the AC outlets, as the DF400iX produces a clean sine wave, with a <1.2% Total Harmonic Distortion (THD).

Outlets

The control panel features 3 AC outlets as follows:

Duplex 120V 20A (5-20R)
120V 30A (TT-30R) receptacle

Furthermore, it has 3 DC outlets: there's a 12V 8A (cigarette lighter style) receptacle making battery charging a breeze and two 5V USB ports (USB-A) with which you may charge electronics, for example mobile phones or tablets, conveniently.

Featuring a TT-30R receptacle (TT for 'Travel Trailer'), this WEN generator is RV Ready, designed specifically for use with recreational vehicles.

Portability

The WEN DF400iX is distinguished by its enclosed inverter generator design (L23.2 x W18 x H20.1 in), providing improved aesthetics and quieter performance compared to traditional, open frame units. This modern design aims to provide an ideal power solution to recreational users.

Even at 100 lbs, the generator is categorized as 'portable,' suggesting its movability, although its weight impede its portability. However, the constrained maneuverability is addressed with the assistance of its set of 2 wheels and its folding handle, allowing for easy shifting once the generator is placed on the ground.

Features

Panel of the WEN DF400iX

The DF400iX's control panel

The DF400iX's control panel is equipped with a digital data center, furnishing detailed information on the power output, voltage, lifetime run hours, frequency and fuel level for you to easily track its activity and status.

In addition to this info, when its oil levels are insufficient, the generator is ready and the generator is overloaded, you will be informed by the featured light indicators.

The fuel shutoff feature turns off the flow of fuel, allowing for the DF400iX to use up the remaining fuel from the carburetor before automatically shutting down. This helps fight the build-up and blockages caused by stagnant fuel inside the carburetor, minimizing maintenance while prolonging the unit’s lifespan.

From a security standpoint, the generator is furnished with an automatic low oil shut-off and an overload protection (circuit breaker), ensuring peace of mind during operation.

The unit also benefits from WEN's CO Watchdog carbon monoxide detection. This system measures the accumulation of poisonous CO gas while the generator is running. If the level of CO gas gets too high, the CO Watchdog system will automatically shut down the generator.

While the standard documentation and an owner's manual (opens in a new tab), helpful for starting the device promptly, come with the WEN DF400iX, the following accessories are also included: propane hose, funnel and tool kit. An official storage cover is also available, as a separate purchase.

Product Video

The WEN DF400iX versus other generators

The following charts are provided to give you an idea of how some of the key specs of the WEN DF400iX compare to inverter generators of similar power (between 2500 and 3500 W).

  • With a dry weight of 100 pounds, the WEN DF400iX finds itself in the expected weight range for inverter generators able to produce between 2500 and 3500 rated watts. If weight is your top priority, one of the champions in this power category is the Pulsar PGD40iSCO, weighing just 46 pounds.
  • With a lowest noise rating of 58 dBA, the inverter generator is one of the more quiet of the generators of similar type and power. For those who are looking for a less noisy device, we suggest the Honda EU3000iS. With just 50 dBA, it is one of the most quiet devices in this power range.
  • The DF400iX, falls within the average autonomy range compared to inverter generators of a roughly same power, with a run time of around 8.5 hours at a 50% load and a full tank. If concerned with autonomy, one of the products of a comparable power output, which offers the highest run time, is the Ryobi RYi4022X, boasting with around 12 hours.
  • While the run time is an important parameter, it is dependent on the fuel tank's capacity and thus, doesn't say much on its own unless we consider fuel consumption as well. With an estimated gasoline consumption of 0.26 GPH (gallon per hour) at 50% load, this inverter generator is among the more fuel-efficient of the products in the above-mentioned wattage range. If you wish to acquire one of the most gasoline efficient products of this power range, the Pulsar PGD40iSCO, with a fuel consumption of 0.22 GPH could be in your good books.

Price comparison

As you can see from these interactive charts, when compared to other 2500-3500W dual fuel inverter generators, the WEN DF400iX is on the average side of the price range.

Therefore, this generator nicely fits in the expected budget for this kind of product.

The bottom line

STRENGTHS:
  • In the expected price range
  • Dual Fuel
  • CO Watchdog
  • Several accessories included
  • RV Ready
  • Electric start
  • Parallel capable
  • Auto Fuel Selection technology
  • Inverter
  • Quiet for its power (58 dBA)
  • Fuel efficient
AVERAGE SPECS:
  • Decent weight (100 lbs)
  • Decent run time
WEAKNESSES:
  • No remote start

Do you own the WEN DF400iX and agree (or disagree) with these strengths and weaknesses?

Let us know and write your own review.

Features and Specifications

General
InverterYes
Parallel capableYes, cable not included
RV readyYes
FuelDual Fuel (gasoline/propane)
Engine212 cc OHV 4-stroke
Starting systemRecoil, Electric
Warranty3 years
VoltageAC: 120V 60 Hz, DC: 12V
Power
GasolinePropane
Running watts3,200 W2,900 W
Starting watts4,000 W3,200 W
Running amps26.7 amps24.2 amps
Peak amps33.3 amps26.7 amps
Run time @50% load8.5 h9 h
Run time @25% loadUnknownUnknown
Features
GFCI outletsNo
Covered outletsNo
Automatic Voltage RegulationInverter
AC outlets
  • 1x Duplex 120V 20A (5-20R)
  • 1x 120V 30A (TT-30R)
DC outlets1x 12V 8A (cigarette lighter style)
2x 5V USB port (USB-A)
Data centerPower output, fuel level, lifetime run hours, voltage and frequency
IndicatorsLow oil, overload and output ready
Fuel tank2.2 gal
Fuel gaugeDigital
Misc
Weight100 lbs
Approx. dimensions (L x W x H)23.2 x 18 x 20.1 in
Noise (lower limit)58 dBA
THD< 1.2%
ComplianceCARB, EPA
SecurityLow oil and overload protection, CO monitoring
Spark arrestorYes
Accessories includedFunnel, tool kit, propane hose, and battery
UPC044459040019

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.

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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 DF400iX is covered under a warranty for up to 3 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 size calculator.
ItemRunning WattsStarting Watts
At homeMicrowave (1000 watts)15001500
Refrigerator (energy star)1921192
Freezer8101750
Set of 5 LED light bulbs5555
Total2557 W3557 W
For campingRV AC (11,000 BTU)10101600
RV refrigerator180600
Radiant heater13001300
Set of 5 LED light bulbs5555
Total2545 W3135 W
For workGrinder14002500
Belt sander11502400
Total2550 W3800 W

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