The catch
WEN DF480iX
Only 120V is available, and a plug adapter will not produce 240V.
Side by side
The choice is slightly higher propane running capacity or EFI with remote start.
Before you buy
Nominal margin is 400W for DF480iX and 300W for iGen5000DFc EFI. A negative number means the continuous rating has been exceeded.
Where this comes from
The measured total running load is assumed to be 3200W on propane. Margin = fuel-specific running watts minus 3200. Starting transients, altitude, temperature, power factor and per-leg limits are left out.
The catch
Only 120V is available, and a plug adapter will not produce 240V.
The catch
It cannot serve as a 240V transfer-switch generator.


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DF480iX and iGen5000DFc EFI: a comparison of fuel-specific power, starting demand, voltage and connection limits for choosing a generator.
The choice is slightly higher propane running capacity or EFI with remote start.
Which one fits
On propane, the WEN gives 3600W running and the Westinghouse 3500W. A 100W gap is small, and the starting ratings point the opposite direction at 4320W and 4500W.
EFI and remote start come with the Westinghouse. The WEN has electric start with a recoil backup, plus a fuel-shutoff procedure for the carburetor. Decide how you will start and store the machine.
A TT-30R and 120V-only output are shared by both units. If you need a 240V transfer, both are out before fuel tank or remote controls come into it.
A 30A resistive load at 120V is 3600W. WEN reaches that running rating on propane, and the Westinghouse 3500W rating falls 100W short.
In practice
Nominal margin is 400W for DF480iX and 300W for iGen5000DFc EFI. A negative number means the continuous rating has been exceeded.
The measured total running load is assumed to be 3200W on propane. Margin = fuel-specific running watts minus 3200. Starting transients, altitude, temperature, power factor and per-leg limits are left out.
Measured against this separately specified total starting demand, DF480iX has 120W of published peak margin and iGen5000DFc EFI has 300W.
Take the combined load during one motor start as 4200W, counting the appliances already running. Subtract 4200 from the propane starting rating. That shows nothing about surge duration or whether the motor starts successfully.
A 30A resistive load at 120V is 3600W. WEN reaches that running rating on propane, and the Westinghouse 3500W rating falls 100W short.
120 × 30 = 3600W. Running a continuous load at its full rating leaves no room for another appliance or a starting transient.
Plug in your numbers
This checks hard limits only. Personal preferences are left out of the math.
On gasoline, it is rated for 4,000 running and 4,800 starting watts. With reserve, your load plan calls for 1,200 watts running and 2,900 watts starting.
On gasoline, it is rated for 3,900 running and 5,000 starting watts. With reserve, your load plan calls for 1,200 watts running and 2,900 watts starting.
The estimate adds up the running watts of everything on at once, the biggest single startup surge and 15% headroom. Check each appliance label before you rely on it. Never run a fuel-burning generator indoors, in a garage or near doors, windows or vents.

WEN, DF480iX
Wheels and electric start come with this 120V dual-fuel inverter. Running output is 4000W on gasoline and 3600W on propane, and it has four household sockets plus a TT-30R RV connection.

Westinghouse, iGen5000DFc EFI
Rated for 3,900 running watts and 5,000 starting watts on gasoline, it also takes propane.
Spec by spec
| Spec | WEN DF480iX | Westinghouse iGen5000DFc EFI Dual Fuel Inverter | In practice |
|---|---|---|---|
| Running and starting output on propane | 3,600W running / 4,320W starting | 3,500W running / 4,500W starting | Each of continuous load and brief starting demand has its own limit. |
| Starting system | Electric with recoil backup | Remote and electric with EFI | How easy it is to start is a separate matter from how the generator is carried. |
| Handling layout | Wheels and telescoping handle | 111lb wheeled enclosure | Look at the route out of storage and how it will get into a vehicle. |
| Connection panel | 120V TT-30R plus four 5-20R sockets | 120V TT-30R plus duplex 5-20R | Match the exact receptacle, breaker and cord to the system you intend. |
| Gasoline tank | 1.9 gallons | 3.2 gallons | Runtime at your load cannot be worked out from tank size alone. |
| Power regulation | Inverter, Under 1.2% at full load | Inverter, 3% or less | Check waveform requirements specific to the load. |
Trade-offs
Change of plan
Go with WEN DF480iX. On propane, the WEN gives 3600W running and the Westinghouse 3500W. A 100W gap is small, and the starting ratings point the opposite direction at 4320W and 4500W.
Go with Westinghouse iGen5000DFc EFI Dual Fuel Inverter. EFI and remote start come with the Westinghouse. The WEN has electric start with a recoil backup, plus a fuel-shutoff procedure for the carburetor. Decide how you will start and store the machine.
Decision guide
It comes down to slightly higher propane running capacity versus EFI and remote start.
On propane, the WEN gives 3600W running and the Westinghouse 3500W. A 100W gap is small, and the starting ratings point the opposite direction at 4320W and 4500W.
EFI and remote start come with the Westinghouse. The WEN has electric start with a recoil backup, plus a fuel-shutoff procedure for the carburetor. Decide how you will start and store the machine.
A TT-30R and 120V-only output are shared by both units. If you need a 240V transfer, both are out before fuel tank or remote controls come into it.
By the numbers
What we found across the generator sets we compare, plus the checked facts behind each finding.
Only 3 of the 24 models checked meet every need here: “Power a refrigerator and the essential lights” and “Have one person lift it”.
3 models fit, out of 24 checkedHow we countedThe count uses each product's current fit ratings for “Power a refrigerator and the essential lights” and “Have one person lift it”. A need with no documented match is not counted.
| Product | Needs it meets | Facts we checked | Sources |
|---|---|---|---|
| WEN DF480iX | None of these needs is a documented match |
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| Westinghouse iGen5000DFc EFI Dual Fuel Inverter |
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Ready to buy
Open either model on Amazon for the current price, customer reviews and delivery options.

3600W on propane and four household sockets are what you want
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EFI and remote electric starting appeal to you
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