Westinghouse vs Champion Inverter Generators

Westinghouse iGen2550DFc: 1,900 W running on gas, 1,700 W on propane, 2,550 W starting, 52 dBA, 1.1 gal tank, 11 hours at quarter load, 43.2 lb, CO sensor, a 5-20R duplex plus a TT-30R RV outlet, $500 to $1,000. Champion 2500 Dual Fuel with CO Shield (201323): 1,850 W on gas, 1,665 W on propane, 2,500 W starting, 53 dBA, 1.05 gal tank, 11.5 hours at quarter load, CO Shield, one 120V duplex, $500 to $1,000.

These are close to identical on paper. The Westinghouse has 50 W more output on gas, 35 W more on propane and a TT-30R for a camper. The Champion runs half an hour longer on a slightly smaller tank, so at a 500 W average it burns about 2.4 gallons a day against 2.5. Champion lists the 201323's propane run time at 25 hours on a 20 lb tank at quarter load.

The older Champion 2500 we tracked (200961) is unavailable on Amazon as of October 2026, so the 201323 is the current Champion listing in this class. Either one carries a fridge, furnace blower, router and lights if they do not all start at once.

Westinghouse iGen5000DFc: 3,900 W on gas, 3,500 W on propane, 5,000 W starting, 52 dBA, 3.4 gal tank, 18 hours at quarter load, electric start, CO sensor, TT-30R, 105.8 lb, $500 to $1,000. Champion 4500 (201319): 3,500 W on gas, 3,150 W on propane, 4,500 W starting, 61 dBA, 2.3 gal tank, 14 hours at quarter load, electric start, CO Shield, TT-30R, 103.6 lb, $500 to $1,000.

Westinghouse leads on every output and noise spec: 400 W more on gas, 350 W more on propane, 500 W more starting and 9 dBA quieter. It also runs 4 hours longer on a tank. At a 500 W average the two burn about the same per day, 2.3 gallons for the Westinghouse and 2.25 for the Champion, because the smaller Champion runs closer to its rated load.

The gas-only Westinghouse iGen5000 ($500 to $1,000) has the same 3,900 W and 52 dBA but no propane and no CO sensor. Pay the difference for the iGen5000DFc unless you will never store propane.

Westinghouse iGen8200TFc: 6,600 W on gas, 5,940 W on propane, 5,280 W on natural gas, 8,200 W starting, 60 dBA, 14-50R, 17 hours at quarter load on 3.96 gal, 134.5 lb, $1,000 to $2,000. Westinghouse iGen12000DFc: 9,000 W on gas, 8,100 W on propane, 12,000 W starting, 64 dBA, 14-50R and L14-30R, 19 hours on 7.9 gal, 189 lb, over $2,000.

Champion 8500 (201175): 7,000 W on gas, 6,300 W on propane, 8,500 W starting, 61 dBA, L14-30R and 14-50R, 14 hours on 5.3 gal, 213.8 lb open-frame inverter, $1,000 to $2,000. Champion 11,000 W (201417): 9,000 W on gas, 8,100 W on propane, 11,000 W starting, 64 dBA, L14-30R and 14-50R, 15 hours on 6.08 gal, electric start, 205.1 lb, $1,000 to $2,000.

At 9,000 W the iGen12000DFc and Champion 201417 match on running watts, propane output and noise. The Westinghouse starts 1,000 W more, carries 1.8 gal more fuel, runs 4 hours longer per tank and weighs 16 lb less. The Champion lists a 3-year limited warranty. At a 500 W average both burn about 5 gallons a day; the iGen8200TFc burns about 2.8 and the Champion 8500 about 4.5.

For natural gas, the iGen8200TFc is the only option of the two brands in our database. The Champion 9000 W tri-fuel inverter we tracked is unavailable on Amazon as of October 2026. Every unit in this class starts a 1/2 HP 240V well pump.

Champion lists a 3-year limited warranty with free lifetime technical support on the 201323 and 201417. Check Westinghouse's current warranty on the product page for the model you pick, since terms vary by model and seller.

Every model compared here has a CO shutoff sensor except the gas-only iGen5000. It does not replace placement: run the generator at least 20 ft from the house with the exhaust pointed away, never in a garage, and keep a battery CO alarm on every sleeping level.

Noise is rated at 23 ft at light load and rises at full load on every brand. Propane output runs about 10 percent below gasoline across both brands, so size for the propane figure if propane is what you will store.