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The 5 best portable generators in 2026, by running watts
Updated
Short version: for keeping home essentials on, or for a 30 amp RV, most people should look at the Westinghouse iGen5000DF. It is a quiet inverter with 3,900 running watts. If you need 240 volts or want to run most of a house through a transfer switch, step up to the Westinghouse WGen9500DF. For camping, the Champion 4000-Watt Dual Fuel weighs about 52 pounds and has a CO shutoff.
Not sure how many watts you need? Use the wattage calculator first.
Quick comparison
| Generator | Number in the name | Running watts, gas | Running watts, propane | Type | CO shutoff listed | Weight |
|---|---|---|---|---|---|---|
| Westinghouse iGen5000DF | 5,000 | 3,900 | Not on listing | Inverter | Not seen | 104.7 lb |
| Westinghouse WGen9500DF | 12,500 | 9,500 | 8,500 | Open frame, 240V | Not seen | 210 lb |
| Westinghouse WGen5300DFcv | 6,500 | 5,300 | 4,800 | Open frame, 240V | Yes | 135.6 lb |
| Champion 4000-Watt Dual Fuel | 4,000 | 3,000 | 2,700 | Inverter | Yes | 51.8 lb |
| WEN 56235i | 2,350 | 1,900 | Gas only | Inverter | Not seen | 39 lb |
"Not seen" means the listing we read did not mention it. It does not prove the feature is missing. Confirm on the listing before you order.
Safety first, every time
- Carbon monoxide kills. Never run a generator indoors, in a garage, in a shed or on a porch, even with the door open. Keep it at least 20 feet from the house. Point the exhaust away from windows, doors and vents. Put battery CO alarms inside your home.
- Never backfeed. Do not plug a generator into a wall outlet or dryer outlet. It can kill a utility worker or a neighbor and can start a fire. To power home circuits you need a transfer switch or an interlock kit, installed by a licensed electrician.
- Without that, run heavy-duty outdoor extension cords from the generator straight to each appliance.
- Let the engine cool before you refuel. Store fuel outside the house.
The picks
Specs and owner feedback checked on Amazon September 18, 2026.
Westinghouse iGen5000DF Dual Fuel Inverter
Get this one if you want to keep a fridge, a furnace blower, lights and the internet going, and you want it quiet enough to keep the neighbors on your side. It is also a fit for a 30 amp travel trailer. Skip it if you need 240 volts for a well pump or a big central air unit. The box says 5,000 watts. The running number is 3,900, which is 78 percent of the headline.
Key specs (from the manufacturer listing)
- 5,000 peak watts and 3,900 rated (running) watts. The listing we read did not give separate propane numbers, so expect less on propane and check the manual
- Inverter with a maker claim of less than 3% THD
- Maker claims as low as 52 dBA and up to 18 hours on a 3.4 gallon tank. The load for that runtime was not stated in the part we read
- Remote start key fob, electric start and recoil start
- One 120V 20A household duplex outlet, one TT-30R 30A RV outlet, two USB ports
- 104.7 pounds, 24.5 x 16.3 x 20 inches, 3-year limited warranty
Recurring themes in owner feedback
- They like: Owners praise how quiet it is and say the electric start works every time. Some report running it for days in an outage, and RV owners say it handles a 15,000 BTU air conditioner.
- They complain about: The review summary we read was mostly positive. The main tradeoff is weight. At about 105 pounds it rolls, but you will not lift it alone.
Good
- Clean inverter power for electronics
- Quiet for its size, per the maker's number and owner feedback
- Electric and remote start
Watch out for
- 120 volts only. No 240V outlet
- Propane output not shown on the listing we read
- Heavy for an inverter
- The listing we read did not mention a CO shutoff sensor
Westinghouse WGen9500DF Dual Fuel
Get this one if you want to run most of a house through a transfer switch, including 240 volt loads like a well pump. Skip it for camping or for close neighbors. It is an open-frame machine, the louder kind, and it weighs 210 pounds. The title says 12,500 watts. You get 9,500 running watts on gas and 8,500 on propane, a drop of about 11 percent.
Key specs (from the manufacturer listing)
- Gasoline: 9,500 running and 12,500 peak watts. Propane: 8,500 running and 11,200 peak watts
- 457cc engine with cast iron sleeve and automatic low oil shutdown
- Maker claims up to 12 hours on a 6.6 gallon tank. Load not stated in the part we read
- Two GFCI 120V 20A outlets, one L14-30R 30A transfer switch outlet, one 14-50R 50A 120/240V outlet
- Remote start key fob, electric and recoil start
- 210 pounds, 27.2 x 26.1 x 26.5 inches, 3-year limited warranty, EPA compliant per the listing
Recurring themes in owner feedback
- They like: Owners call it reliable and easy to set up, say it starts right up, and like being able to switch between gas and propane. Some run most of a house on it.
- They complain about: The review summary we read was mostly positive. The main tradeoffs are size and noise. It is a 210 pound open-frame machine, and the listing we read did not mention a CO shutoff sensor.
Good
- Enough running watts for most home essentials plus one large load
- 240V and a 50 amp outlet
- Propane numbers are printed plainly on the listing
Watch out for
- Open frame, so louder than an inverter. No noise figure on the listing we read
- No THD figure on the listing we read
- The listing we read did not mention a CO shutoff sensor. Confirm before you buy
- Too heavy to lift into a truck alone
Westinghouse WGen5300DFcv Dual Fuel
Get this one if you want a lower-cost home backup unit that still has a transfer switch outlet and a CO sensor. Skip it if noise matters or you plan to power sensitive electronics directly. The title says 6,500 watts. Running watts are 5,300 on gas and 4,800 on propane, about 9 percent less.
Key specs (from the manufacturer listing)
- Gasoline: 5,300 running and 6,500 peak watts. Propane: 4,800 running and 5,800 peak watts
- 274cc engine with automatic low oil and carbon monoxide (CO) shutdown
- 120/240V selector switch. Maker claims up to 14.5 hours on a 4.7 gallon tank. Load not stated in the part we read
- One 120V household duplex outlet, one TT-30R 30A RV outlet, one L14-30R 30A transfer switch outlet
- 135.6 pounds, 23.2 x 20.1 x 19.1 inches, wheel kit included, 3-year limited warranty
Recurring themes in owner feedback
- They like: Owners call it a solid, heavy-duty unit that starts on the first pull and runs on both fuels. They also like the clear manual.
- They complain about: Noise gets mixed reports. Some find it quieter than most generators, others call it a little loud.
Good
- CO shutoff sensor listed
- 240V and a transfer switch outlet at a smaller size
- Propane numbers are printed plainly on the listing
Watch out for
- Open frame. Owners are split on noise
- Recoil start. The listing we read did not mention electric start
- No THD figure on the listing we read
Champion 4000-Watt Dual Fuel Inverter (201050)
Get this one if you camp, tailgate or own a travel trailer and want to run on propane. It weighs about 52 pounds and has a CO shutoff. Skip it for whole-home backup. The name says 4,000 watts. Running watts are 3,000 on gas and 2,700 on propane, a 10 percent drop.
Key specs (from the manufacturer listing)
- Gasoline: 4,000 starting and 3,000 running watts. Propane: 2,700 running watts
- CO Shield carbon monoxide auto shutoff
- Maker claims 64 dBA from 23 feet, up to 10 hours on gasoline and up to 25 hours on propane. Load and propane tank size not stated in the part we read
- Inverter with a maker claim of less than 3% THD
- One TT-30R RV outlet, one 120V 20A household duplex outlet, one 12V outlet, parallel outlets. Parallel kit sold separately
- 51.8 pounds, 1.54 gallon tank, 3-year limited warranty
Recurring themes in owner feedback
- They like: Owners say it is fairly quiet, light enough to carry to a campsite, and runs well on propane. RV and camper owners are the happiest group.
- They complain about: The review summary we read was mostly positive. The main tradeoff is power. At 3,000 running watts on gas it will not run a whole house.
Good
- Light enough for one person to carry
- CO shutoff sensor
- Can be paired with a second unit for more power
Watch out for
- 3,000 running watts is not enough for most home backup plans
- The listing names no electric start, so plan on pull starting
- Parallel kit costs extra
WEN 56235i Inverter
Get this one if you want the lightest pick here for tent camping, a small job, or keeping a fridge and phones going in an outage. Skip it if you need to start an air conditioner or a pump. It is gasoline only. The name says 2,350 watts. Running watts are 1,900, which is 81 percent of the headline.
Key specs (from the manufacturer listing)
- 2,350 surge watts and 1,900 rated (running) watts, gasoline only
- 39 pounds, 17.3 x 11.5 x 17.5 inches
- Maker describes the noise as comparable to a normal conversation. No dBA number in the part we read
- 1 gallon tank. The spec table lists a 10 hour runtime. Load not stated
- Fuel shutoff that uses up the fuel in the carburetor before shutdown
- Two 120V outlets, one 12V DC outlet, two USB ports, two-year warranty, CARB compliant per the listing
Recurring themes in owner feedback
- They like: Owners say it starts on the first pull, runs quietly in economy mode, and sips fuel.
- They complain about: Power output gets mixed feedback. Some run a camper with air conditioning, others say it struggles to hold steady output under a big load.
Good
- Easy for one person to carry
- Clean inverter power for phones and laptops
- Fuel shutoff helps with storage
Watch out for
- No propane option
- The listing we read did not mention a CO shutoff sensor
- Owners are mixed on how well it holds large loads
- No 30 amp RV outlet
Plugging into your house
Two picks here, the WGen9500DF and the WGen5300DFcv, have an L14-30R outlet that the maker calls transfer switch ready. That outlet is only half the job. The other half is a transfer switch or an interlock kit at your panel, installed by a licensed electrician, often with a permit. It keeps your generator from sending power back up the utility line. Never backfeed through a wall outlet or dryer outlet.
No transfer switch? You can still get through an outage. Run heavy-duty outdoor extension cords from the generator to the fridge, a lamp and your chargers. A furnace, a well pump and anything else wired into the house needs the transfer switch.
Do these things before the first outage
- Add oil, start it and run a real load for 20 minutes while you can still return it.
- Pick the spot now: outdoors, at least 20 feet from the house, exhaust pointed away from windows and doors.
- Buy cords long enough to reach that spot. Do not move the generator closer to fit a short cord.
- Put battery CO alarms on each floor of the house.
- Store fresh fuel safely outside the living space, or keep a full propane tank on hand.