Quick verdict
A dual fuel inverter generator with 4,000 peak and 3,300 rated watts at under 3 percent THD, remote key fob start plus electric and recoil, a TT-30R 30 amp RV outlet, a 120V duplex, two USB ports, a CO sensor with automatic shutdown and a rotating display that shows remaining run time. It suits a 30 amp travel trailer owner or a home outage kit where starting the generator from indoors and switching to propane are worth paying for. The caveat is weight and the propane rating, neither of which the listing states.
Strengths
- 3,300 rated watts starts and runs a 13,500 or 15,000 BTU RV air conditioner
- Remote key fob start, electric start and recoil backup
- Runs on gasoline or propane
- CO sensor and low-oil automatic shutdown
- Display shows fuel, output, remaining run time, voltage and hours
- Three-year limited warranty and a national service network
Weaknesses
- Weight is not stated and this class is a two-person lift
- Propane output rating is not stated in the listing
- 52 dBA and 7 hour figures are best-case, in economy mode at light load
- Starter battery needs tending over winter or the fob is useless
The overall YardToolLab Score is out of 100. Section scores are out of 10.
Who this generator is for
A travel trailer owner who wants to start the generator from inside the camper on a cold morning, run the air conditioner, and switch to propane when the gas can is empty. Westinghouse’s 4000 peak watt dual fuel inverter is built for that buyer: 3,300 rated watts, a remote key fob start alongside electric and recoil, a 30 amp RV outlet, a CO sensor and a rotating digital display that shows how much run time is left.
This review is based on the maker’s published specifications and on recurring owner feedback. We have not run this product ourselves.
What you get
Westinghouse lists 4,000 peak and 3,300 rated watts at under 3 percent total harmonic distortion, on gasoline or propane. Starting is by the included key fob, by push button or by recoil. The panel holds a 5-20R 120V duplex household outlet, a TT-30R 30 amp RV outlet and two USB ports. Protection includes automatic low-oil shutdown and a carbon monoxide sensor that shuts the engine down. The display rotates through fuel level, power output, remaining run time, voltage and lifetime hours. The maker quotes noise as low as 52 dBA and up to 7 hours on the 1.69 gallon tank, with an economy mode. It is EPA compliant, parallel capable, has a telescoping handle, and carries a three-year limited warranty. Weight and the propane-rated output are not stated in this listing.
Rated versus peak, gas versus propane
The 4,000 is the peak figure for a starting surge; plan around 3,300 rated watts. That comfortably starts and runs a 13,500 or 15,000 BTU RV air conditioner with capacity left for the converter, a microwave in short bursts and lighting. At home it covers a refrigerator, freezer, furnace blower, sump pump and electronics together. The listing gives the gas figures only. Dual fuel generators typically give up about 10 percent of their output on propane, so assume somewhat less than 3,300 rated watts when running off a cylinder, and verify the exact propane rating in the manual before sizing for an air conditioner on propane alone. Under 3 percent THD is clean enough for laptops, CPAP machines and modern televisions.
Starting, display and CO shutdown
Remote start is the convenience that sells this class. The included fob starts and stops the engine from the trailer, electric start is on the panel, and recoil is the backup when the battery is low after storage. The display is more useful than it sounds: remaining run time at the current load is the number that tells a camper whether to refuel before bed. The CO sensor is a safety feature now expected on new portable generators; it shuts the engine down if exhaust accumulates around the unit, and it is not a license to run the generator anywhere near a window or door.
Noise, run time and economy mode
The 52 dBA figure is the maker’s and is a minimum, achieved at light load in economy mode; expect more at full output. The 7 hour run time is likewise a maximum on the 1.69 gallon tank at a light, steady load; an air conditioner running all afternoon shortens it considerably. Economy mode lets the engine idle down to match the load, which is where both the noise and the fuel figures come from, and it should be left on except when a large motor is about to start. On propane, run time depends on the cylinder, and a 20 pound tank typically outlasts the gas tank.
Living with it
Westinghouse notes that every unit is run at the factory and may arrive with a trace of oil or fuel odor; that is normal. Run it on propane for storage and occasional use, or drain the carburetor after gasoline. Keep the starter battery charged over winter, since a flat battery means pulling the recoil. The telescoping handle suggests it is meant to be tilted and rolled rather than carried; the exact weight is not in the listing, and inverters of this output usually need two people to lift into a truck bed. The three-year limited warranty is backed by a national service network.
Alternatives to Consider
Westinghouse’s own iGen4500DF is the larger sibling, with more peak output in a similar remote-start dual fuel package. The Champion 4500-watt dual fuel inverter with electric start is the most direct competitor and also widely sold. The WEN 56360i gives up remote start, dual fuel and the display in exchange for a 46 pound body, for the camper who lifts the generator alone.
Verdict
Buy the Westinghouse 4000 peak watt dual fuel inverter for a 30 amp travel trailer or a home outage kit where remote start, propane backup, a CO shutoff and a run-time display are worth the extra weight and cost. Skip it if the generator has to be carried by one person over a distance, or if a 50 amp trailer with two air conditioners is the job, which calls for more output or a parallel pair.
Full specifications
Westinghouse 4000 Peak Watt Super Quiet Dual Fuel Portable Inverter Generator with Remote Electric Start FAQs
The listing gives only the gasoline figures of 4,000 peak and 3,300 rated. Dual fuel generators typically give up about 10 percent on propane, so check the manual before sizing an air conditioner load on a cylinder alone.
It is the maker's minimum, reached at light load in economy mode. Running an air conditioner it will be louder, though still far quieter than an open-frame generator.
An included key fob starts and stops the engine from a distance, with push-button electric start on the panel and a recoil cord as backup. The starter battery must be kept charged over storage.
Yes, the listing describes it as parallel capable. A second compatible Westinghouse unit and the parallel kit combine for a 50 amp trailer or two air conditioners.
