WEN 5,100W Dual-Fuel Generator Review
The WEN DF680iX is a 6800-watt dual fuel inverter generator designed for versatility and convenience, featuring electric start, CO shutdown sensor, and compatibility with both gasoline and propane fuels.
At a Glance
- Running Watts5100W
- Starting Watts6800W
- Fuel TypeDual-Fuel
- Runtime (50%)6.1h
- Noise Level64 dB
- Weight94.8 lbs
Where to buy
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Is this the right generator for you?
Here's the quick tradeoff view — what this model does well, and where it may not fit.
Pros
- 224cc dual-fuel engine runs on both gasoline and propane
- Provides clean power with 1.2% THD versus 2.9% peer average
- Lighter at 94.8 lbs compared to peer average of 186 lbs
- Includes electric start for easy operation
- Built-in wheels and telescoping handle for easier portability
Cons
- Lacks GFCI outlets found on 60% of comparable generators
Summary
The WEN DF680iX is a dual-fuel generator rated at 5,100 running watts and 6,800 starting watts, giving it enough output to handle demanding startup surges while sustaining solid continuous power. As an inverter generator, it is built around delivering controlled power while keeping the package compact and purpose-built.
With dual-fuel capability, the DF680iX can operate on gasoline or propane, letting you choose between fuels based on availability and the kind of runtime you want from a given setup.
Power & Runtime
On gasoline, the DF680iX delivers its top output of 5,100 running watts with 6,800 starting watts, while propane operation is rated at 4,500 running watts and 6,000 starting watts. That difference matters in practice if you are planning loads close to the generator’s upper limit, since propane trades some peak capacity for an alternative fuel option. Noise output is listed at 64 dBA, which helps set expectations for how present the generator will be when operating nearby.
Runtime at 50 percent load is given as 6.1 hours on gasoline and 9 hours on propane, providing a clear contrast between the two fuel choices at the same load level. For power quality, total harmonic distortion is listed at 1.2 percent, which pairs naturally with its inverter design when the goal is cleaner output for electronics and other sensitive devices.
Portability
At 94.8 lbs, the DF680iX lands in a weight range that can limit easy solo portability, especially if you are lifting it in and out of storage or into a vehicle. Its listed dimensions of 22.8 x 16.6 x 19.7 inches help clarify the footprint you will be working with when planning where it will sit during operation or where it will store between uses.
Features
Starting is handled through both recoil and electric starting, giving you flexibility in how you bring it online. A built-in fuel gauge supports quick checks during operation, and indicators are included to help communicate generator status at a glance.
The DF680iX is parallel capable, allowing you to pair it with another compatible unit for expanded output, and it is RV ready for simpler connection in RV use cases. Practical protection details include a spark arrestor and covered outlets, while AVR is included to support regulated output. Compliance is listed as EPA and ANSI/PGMA G300-2023, and the generator carries a 3-year warranty.
Recommended Audiences
- RV owners needing RV-ready power
- Users who want to scale output via parallel operation
- Owners of sensitive electronics seeking clean inverter power
- Buyers wanting fuel flexibility with dual or tri-fuel capability
- Homeowners needing whole-house or jobsite backup power
- Users who value push-button or remote start convenience
Score Breakdown
- Inverter+1
- Dual-Fuel+1
- Electric Start+0.6
- Parallel Capable+0.4
- Watts/$
- Surge/$
- Runtime/$
- Warranty
- THD (lower=better)
- Build Quality
- Noise (lower=better)
- Portability
- Outlet Variety
- Feature Points
What this generator can power
At a Glance
- Continuous:5,100W(recommended usable: 4,080W)
- Surge:6,800W
- Output:120/240V
- Inverter:Yes (clean power for electronics)
Big-item compatibility
May struggle with startup surge
Exceeds capacity
Exceeds capacity
Example setups
Essentials
- Lights + Wi-Fi + Charging
- Refrigerator
- Furnace Blower
- Sump Pump (1/3 HP)
Est. running: 1,800W
Peak surge (single motor): 2,000W
Avoid starting multiple motor loads at the same time.
Essentials + Comfort
- Lights + Wi-Fi + Charging
- Refrigerator
- TV + Entertainment System
- Microwave
- Window AC (10,000 BTU)
- Furnace Blower
Est. running: 3,500W
Peak surge (single motor): 2,000W
Avoid starting multiple motor loads at the same time.
Jobsite / Tools
- Lights + Wi-Fi + Charging
- Circular Saw (7 1/4")
- Air Compressor (1 HP)
Est. running: 3,100W
Peak surge (single motor): 4,500W
Avoid starting multiple motor loads at the same time.
These are estimates using typical wattage assumptions. Real appliances vary. Startup surges can be 2–6× the running wattage for motor-driven loads. 240V loads require a 120/240V generator and proper connection. Use a transfer switch or interlock kit; never backfeed a panel.
About WEN
WEN is renowned for delivering affordable, reliable generators and power equipment, catering to various residential and industrial needs.
Warranty
Power by fuel
| Fuel | Running | Starting | Runtime @50% | Runtime @25% |
|---|---|---|---|---|
| Gasoline | 5100W | 6800W | 6.1h | — |
| Propane | 4500W | 6000W | 9h | — |
Full Specifications
Power
| Running Watts | 5,100 watts |
|---|---|
| Starting Watts | 6,800 watts |
| Starting Watts (Gasoline) | 6,800 W |
| Starting Watts (Propane) | 6,000 W |
| Running Watts (Gasoline) | 5,100 W |
| Running Watts (Propane) | 4,500 W |
Engine
| Engine | 224 cc OHV 4-stroke |
|---|---|
| Engine Type | OHV 4-stroke |
| Engine Displacement | 224 cc |
| Spark Arrestor | Yes |
| Emissions Compliance | EPA, ANSI/PGMA G300-2023 |
Electrical
| Voltage (AC) | 120/240 |
|---|---|
| Voltage (DC) | 12 |
| Phase | Single |
| AC Frequency | 60 hz |
| Current | 42.5 amps |
| GFCI Outlets | No |
| Neutral | Yes |
| USB Outlets | 2x 5V USB port (USB-A) |
| DC Outlets | 1x 12V 8A (cigarette lighter style) |
| AC Outlets | 1x Duplex 120V 20A (5-20R); 1x 120V 30A (TT-30R); 1x 120/240V 30A (L14-30R) |
| Total Harmonic Distortion (THD) | 1.2 % |
Dimensions
| Dimensions | 22.8 x 16.6 x 19.7 inches |
|---|---|
| Weight | 94.8 lbs |
Other
| Automatic Low Oil Shutdown | Yes |
|---|---|
| Emissions Compliance | EPA, ANSI/PGMA G300-2023 |
| Automatic Voltage Regulation | Yes |
| Automatic Voltage Regulator | Yes |
| Battery | Battery |
| Carbon Monoxide Sensor | Yes |
| Covered Outlets | Yes |
| Electric Start | Yes |
| Fuel Gauge | Yes |
| Fuel Tank Capacity | 2.9 gallons |
| Included Accessories | Oil, funnel, tool kit, propane hose, and battery |
| Indicators | Yes |
| Inverter | Yes |
| Noise Level | 64 dBA |
| Parallel Capable | Yes |
| Recoil Start | Yes |
| RV Ready | Yes |
| Starter Type | Electric Start |
| Starting System | Recoil, Electric |
| UPC | 44,459,096,801 |
| Warranty | 3 years |
| Wheels | Yes |
Core
| Fuel Type | Dual-Fuel |
|---|
Runtime
| Runtime @ 50% | 6.1 hours |
|---|---|
| Runtime @ 50% Load (Gasoline) | 6.1 hours |
| Runtime @ 50% Load (Propane) | 9 hours |
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