The WEN DF451i is a quiet and compact dual fuel inverter generator with a rated wattage of 3,500 W and a starting wattage of 4,500 W. (Read full specs)
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Description
Zoom on the WEN DF451i
In short, the WEN DF451i is a quiet and compact portable inverter generator adequately designed for:
- RV travellers wishing to enhance their freedom and nomad lifestyle
- People occasionally participating in sporting competitions, open-air performances and outdoor festivals
- DIYers who wish to improve their efficiency with tools
- Homeowners who want to be sure of their ability to power their fridges, cooking tools, heating and lighting equipment during power failures
- Camping and tailgating buffs looking to enhance their experience
The following sections will present you in detail its power characteristics, the different outlets it offers, its overall portability, and the extra features it benefits from.
Power & Run Time
Featuring dual-fuel technology, the WEN DF451i provides 120V, and offers both power and versatility. Running on gasoline, it delivers a running wattage of 3,500W and a starting wattage of 4,500W. When propane-powered, it offers 3,150 running watts and 4,500 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.
Enjoying a noise rating of 58 dBA (less noisy than a quiet suburb), this inverter generator offers the versatility of starting with either a manual recoil starter system or a simple and elegant electric starter (battery included).
As for its running time, the DF451i, along with its 2.2 gallons fuel capacity, can run for around 8.5 hours at 50% load with a full tank filled with gasoline (fuel consumption around 0.26 GPH). If propane is used, it can operate for around 9 hours (on a 20 lbs tank - propane consumption around 0.52 GPH).
The DF451i produces a clean sine wave: thanks to a <1.2% Total Harmonic Distortion (THD), your sensitive electronics can be safely plugged in the AC outlets.
Outlets
The control panel includes the following 3 AC outlets:
Furthermore, it showcases 3 DC outlets: there's a 12V 8A (cigarette lighter style) receptacle allowing you to easily charge your batteries and two 5V USB ports (USB-A) ideal for charging various electronic devices such as smartphones and tablets.
Thanks to its TT-30R receptacle (TT stands for 'Travel Trailer'), this WEN generator is RV Ready, making it ideal for powering recreational vehicles.
Portability
With its enclosed inverter generator design (L23.2 x W18 x H20.1 in), the WEN DF451i offers superior aesthetics and operates with minimized noise levels, distinguishing itself from standard, open frame generators. The generator has a contemporary design, convenient for recreationally generating power.
With a weight of 100 lbs, the generator is still labeled as 'portable,' denoting its ability to be moved, although its heaviness might restrict easy portability. Nevertheless, the restricted maneuverability is counteracted by its set of 2 wheels and its folding handle, enabling easy shifting once the generator is set in place.
Features
The DF451i's control panel
Included in the control panel of the DF451i, a digital data center assists in tracking its status and activity by providing details on the frequency, power output, fuel level, lifetime run hours and voltage.
In addition to this info, the device’s light indicators will display if the generator is on overload, the generator is ready and its oil levels are insufficient.
The fuel shutoff feature turns off the flow of fuel, allowing for the DF451i 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 point of view, the generator is equipped with an automatic low oil shut-off, a low fuel automatic shutdown and an overload protection (circuit breaker), giving you a peace of mind during use.
Apart from the typical documentation and an owner's manual (opens in a new tab), which lets you start it right away, the WEN DF451i also is packed along with the following accessories: propane hose, funnel and tool kit. An official storage cover is also available, as a separate purchase.
Product Video
The WEN DF451i versus other generators
The following charts are provided to give you an idea of how some of the key specs of the WEN DF451i compare to inverter generators of similar power (between 3000 and 4000 W).
- Weighing in at 100 lbs, the WEN DF451i fits within the expected weight range for inverters producing 3000 to 4000 rated watts. If weight is an important consideration for you, the Pulsar PGD40iSCO stands out as one of the top contenders in this power category, with a dry weight of 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. If you’d prefer a less noisy device, one of the most quiet devices, which share the same power range with this one, is the Westinghouse iGen4500DF, whose lowest noise levels reach just 52 dBA.
- Offering around 8.5 hours of running time on a full tank at 50% load, the DF451i is within the average autonomy range of similarly powerful inverter generators. For those prioritizing autonomy, the Westinghouse iGen4500DF could be considered, as it offers one of the longest run times among generators with similar power output, reaching around 15 hours.
- Though run time is a significant parameter, it's closely tied to the generator's fuel tank size. To get a comprehensive understanding, fuel efficiency must also be taken into account. This inverter generator is one of the more fuel-efficient models of the aforementioned output range, as its estimated fuel consumption reaches just 0.26 GPH (gallon per hour) at 50% load. If gasoline efficiency is at the top of your list, you may want to have a look at the Pulsar PGD40iSCO, which has great fuel efficiency, with a gas consumption of only 0.22 gallons per hour.
Price comparison
As you can see from these interactive charts, when compared to other 3000-4000W dual fuel inverter generators, the WEN DF451i 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
- In the expected price range
- Dual Fuel
- Several accessories included
- RV Ready
- Electric start
- Parallel capable
- Auto Fuel Selection technology
- Inverter
- Quiet for its power (58 dBA)
- Fuel efficient
- Decent weight (100 lbs)
- Decent run time
- No remote start
Features and Specifications
| Inverter | Yes |
|---|---|
| Parallel capable | Yes, cable not included |
| RV ready | Yes |
| Fuel | Dual Fuel (gasoline/propane) |
| Engine | 212 cc OHV 4-stroke |
| Starting system | Recoil, Electric |
| Warranty | 3 years |
| Voltage | AC: 120V 60 Hz, DC: 12V |
| Gasoline | Propane | |
|---|---|---|
| Running watts | 3,500 W | 3,150 W |
| Starting watts | 4,500 W | 4,500 W |
| Running amps | 29.2 amps | 26.3 amps |
| Peak amps | 37.5 amps | 37.5 amps |
| Run time @50% load | 8.5 h | 9 h |
| Run time @25% load | Unknown | Unknown |
| GFCI outlets | No |
|---|---|
| Covered outlets | No |
| Automatic Voltage Regulation | Inverter |
| AC outlets |
|
| DC outlets | 1x 12V 8A (cigarette lighter style) 2x 5V USB port (USB-A) |
| Data center | Power output, fuel level, lifetime run hours, voltage and frequency |
| Indicators | Low oil, overload and output ready |
| Fuel tank | 2.2 gal |
| Fuel gauge | Digital |
| Weight | 100 lbs |
|---|---|
| Approx. dimensions (L x W x H) | 23.2 x 18 x 20.1 in |
| Noise (lower limit) | 58 dBA |
| THD | < 1.2% |
| Compliance | CARB, EPA |
| Security | Low oil, overload and low fuel protection |
| Spark arrestor | Yes |
| Neutral | Floating |
| Accessories included | Funnel, tool kit, propane hose, and battery |
| UPC | 044459004516 |
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 DF451i 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?
| Item | Running Watts | Starting Watts | |
|---|---|---|---|
| At home | Electric fry pan | 1500 | 1500 |
| Refrigerator (energy star) | 192 | 1192 | |
| Vacuum cleaner | 1075 | 1175 | |
| Cell phone charger | 20 | 20 | |
| Total | 2787 W | 3787 W | |
| For camping | RV AC (11,000 BTU) | 1010 | 1600 |
| RV refrigerator | 180 | 600 | |
| Electric fry pan | 1500 | 1500 | |
| Radio | 100 | 100 | |
| Total | 2790 W | 3380 W | |
| For work | Grinder | 1400 | 2500 |
| Demolition hammer | 1260 | 1260 | |
| Bug zapper | 80 | 80 | |
| Total | 2740 W | 3840 W |
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