Clean 120 V power from gasoline, propane or natural gas
Eight inverter generators, from LIFAN’s 1,800 W at 42.8 lb to Westinghouse’s 6,600 W tri-fuel at 134.5 lb. An inverter generator produces clean power under 3% THD for electronics and throttles its engine to the load. What separates them here: fuel (gasoline only, dual fuel with propane, or Westinghouse’s natural gas); CO shutdown, on the WEN dual-fuel models, the Champion and the Westinghouse but not mentioned on LIFAN or the gas-only WENs; outlets, with TT-30R RV receptacles on most and 240 V only on the WEN DF680iX (L14-30R) and the Westinghouse (14-50R); and price per running watt, from about 6.4 W per dollar (WEN DF680iX) to 4.0 (Champion). One pricing quirk: on November 2, 2026, WEN’s gas-only 56360i cost $27 more than its dual-fuel DF360iX with the same gasoline rating and a CO sensor. Generators must run outdoors, away from doors and windows. Prices were read on Amazon.com on that date.
WEN 56235i super quiet 2,350 W portable inverter generator: 2,350 surge / 1,900 rated watts, 79 cc, 39 lb, fuel shut-off, two 120 V outlets, 12 V and two USB, 1-gallon tank, up to 10 hours, 2-year warranty
The lightest generator here at 39 lb: 1,900 rated watts of clean power with a fuel shut-off, sold by Amazon at $429 with 2,630 ratings.
Best for: Camping, tailgating and small loads, carried by one person
≈ $429
WEN DF360iX 3,600 W dual fuel RV-ready inverter generator: gasoline 3,600 surge / 2,900 rated watts, propane 3,500 / 2,600, CO Watchdog shutdown, fuel shut-off, two 120 V, TT-30R, 12 V and two USB outlets, LPG quick-connect, 49 lb, 3-year warranty
A dual fuel 2,900 W inverter generator with a CO shutdown sensor and a TT-30R RV outlet for $521, sold by Amazon: the value pick of the 3 kW class.
Best for: RV and home backup on a budget, with propane as an option
≈ $521
LIFAN 2300i-2 portable gas inverter generator: 2,300 peak / 1,800 running watts, eco mode, parallel ready, 5 L (1.3 gal) tank, up to 10 hours, 42.8 lb, 1-year warranty
A 1,800 W running gas inverter generator with eco mode and parallel capability for $299.99, the cheapest on this shelf by $129.
Best for: Camping and tailgating loads: lights, fans, chargers, laptops
≈ $300
Champion 4,000 W dual fuel RV-ready inverter generator: 4,000 starting / 3,000 running watts on gasoline, 2,700 running on propane, 64 dBA at 23 ft, CO Shield shutoff, TT-30R and 5-20R outlets under 3% THD, parallel ready, 51.8 lb, 3-year warranty
A 3,000 W running, dual fuel inverter generator at 64 dBA, with CO Shield, a TT-30R RV outlet and up to 25 hours on propane, sold by Amazon at $749.
Best for: RV owners who want propane, a quiet engine and a TT-30R outlet in one unit
≈ $749
WEN DF480iX 4,800 W dual fuel RV-ready inverter generator with electric start: 224 cc, gasoline 4,800 surge / 4,000 rated watts, propane 4,320 / 4,000, CO Watchdog, wheels and telescoping handle, four 120 V, TT-30R, 12 V and USB outlets, 78.5 lb
A 4,000 W rated dual fuel inverter generator that keeps its full rating on propane, with electric start and wheels, for $647, sold by Amazon.
Best for: RVs with a 13,500 BTU air conditioner, and home backup of a fridge and circuits
≈ $647
WEN 56360i 3,600 W RV-ready inverter generator: gasoline only, 149 cc, 3,600 surge / 2,900 rated watts, fuel shut-off, two 120 V, TT-30R, 12 V and two USB outlets, 46 lb, 3-year warranty
WEN’s gasoline-only 3,600 W inverter generator with a TT-30R outlet at 46 lb, for $548.31. The dual fuel DF360iX costs less.
Best for: Buyers who will never use propane and want the lighter case
≈ $548
WEN DF680iX 6,800 W dual fuel inverter generator with electric start: gasoline 6,800 surge / 5,100 rated watts, propane 6,000 / 4,500, bonded-neutral 240 V for low-power Level 2 EV charging, L14-30R, TT-30R, CO Watchdog, wheels, 99.2 lb
A 5,100 W rated dual fuel inverter generator with a 240 V L14-30R outlet, bonded neutral for low-power Level 2 EV charging, for $798.
Best for: Home backup through a transfer switch, and occasional EV top-ups
≈ $798
Westinghouse iGen8200TFc tri-fuel inverter generator: gasoline, propane or natural gas, 8,200 peak / 6,600 running watts on gasoline, remote electric start, 120/240 V 14-50R 50 A outlet, TT-30R, under 3% THD, 298 cc, up to 17 hours, CO sensor, 134.5 lb
A tri-fuel inverter generator, including natural gas, with 6,600 running watts, a 50 A 14-50R outlet and remote start, for $1,399, sold by Amazon.
Best for: Whole-home backup with a natural gas line
≈ $1399
Dual fuel and a CO sensor for less than the gas-only sibling.
One that converts engine output to clean AC electronically, under 3% THD here, and varies engine speed with the load.
It shuts the engine off if carbon monoxide builds up. Several units here have one; generators must still run outdoors.
The standard 30 A RV receptacle.
Through a transfer switch or interlock on a 240 V outlet: WEN DF680iX or Westinghouse.
Champion and LIFAN are parallel-ready with kits.
Champion: up to 25 hours on propane; Westinghouse: up to 17 hours on gasoline at 25% load.
WEN DF360iX is the value pick, Westinghouse the home-backup machine, WEN 56235i the light one, and WEN DF680iX the 240 V bargain.
A column is kept only if four units in five publish its figure. Otherwise it would compare cells left blank.
| Model | Price | Warranty | Weight | Engine | Tank |
|---|---|---|---|---|---|
| LIFAN 2300i-2 | $300 | 1 year | 42.8 lb | — | 5 liters (about 1.3 gallons) |
| WEN 56235i | $429 | 2 years limited | 39 lb | 79 cc | 1 gallon |
| WEN DF360iX | $521 | 3 years limited | 49 lb | 149 cc | 1.5 gallons |
| WEN 56360i | $548 | 3 years limited | 46 lb | 149 cc, recoil start | 1.6 gallons |
| WEN DF480iX | $647 | 3 years limited | 78.5 lb | 224 cc | 1.9 gallons |
| Champion Power Equipment 4000-Watt Dual Fuel Inverter (201050) | $749 | 3 years limited, free lifetime technical support | 51.8 lb | 149 cc, recoil start | 1.54 gallons |
| WEN DF680iX | $798 | 3 years limited | 99.2 lb | 224 cc | 2.9 gallons |
| Westinghouse iGen8200TFc | $1399 | 3 years limited | 134.5 lb | 298 cc OHV with cast iron sleeve | — |
$647 – $1399
4 models
WEN DF480iX, Champion Power Equipment 4000-Watt Dual Fuel Inverter (201050), WEN DF680iX
Specifications: manufacturer sheets for portable power gear and the matching Amazon product pages. Prices and availability: Keepa. Every figure in this table names its source.
Most recent revision in this category: November 2, 2026.
A price quoted in the text of a PowerVerdict page dates from the day that page was written; the live figure beside each product is fetched while you read and replaces it.
