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Best Low THD Dual Fuel Generator of 2022

Last Updated: August 8, 2022
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Generator ModelChampion 200961
Portable Inverter Generator
Champion 3400-Watt RV
Ready Portable Generator
Westinghouse iGen4500DFc
Portable Inverter Generator
Champion 200914 Open
Frame Inverter Generator
Champion 200988 RV Ready
Portable Inverter Generator
DuroMax XP9000i
Hybrid Portable Generator
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PriceCheck PriceCheck PriceCheck PriceCheck PriceCheck PriceCheck Price
Rated/Running Watts1850W (gas); 1665W (propane)3100 W (gas); 2790 W (propane)3700 W (gas); 3330 W (propane)3500 W (gas); 3150 W (propane)3500 W (gas); 3150 W (propane)7600 W (gas); 7200 W (propane)
Peak/Starting Watts2500W3400 W (gas); 3060 W (propane)4500 W (gas); 4050 W (propane)4250 W (gas); 4250 W (propane)4500 W (gas); 4500 W (propane)9000 W (gas); 8550 W (propane)
THD<3% THD<3% THD<3% THD<3% THD<3% THDLow
Fuel TypeDual Fuel (gasoline/propane)Dual Fuel (gasoline/propane)Dual Fuel (gasoline/propane)Dual Fuel (gasoline/propane)Dual Fuel (gasoline/propane)Dual Fuel (Gasoline/Propane)
Starting SystemRecoilRecoil, ElectricRecoil, Electric, RemoteRecoilRecoil, ElectricRecoil, Electric, Remote
Noise Level (dBA)53 dBA59 dBA52 dBA64 dBA61 dBA68 dBA
Outlets/Receptacles120V 20A Duplex (5-20R), 12V DC Automotive, Parallel1x Duplex 120V 20A (5-20R); 1x 120V 30A (TT-30R); 1x 12V 8A1x Duplex 120V 20A (5-20R); 1x 120V 30A (TT-30R); 2x 5V USB port (USB-A)1x Duplex 120V 20A (5-20R); 1x 120V 30A (TT-30R); 1x 12V 8A (cigarette lighter style)1x Duplex 120V 20A (5-20R); 1x 120V 30A (TT-30R); 1x 12V 8A (cigarette lighter style)2x Duplex 120V 20A (5-20R); 1x 120V 30A (L5-30R); 1x 120/240V 30A (L14-30R); 2x 5V USB port (USB-A and USB-C)
Parallel CapabilityYesYesYes, cable not includedYes, cable not includedYes, cable not includedYes, cable not included
Voltage120 voltsAC: 120V 60 Hz, DC: 12VAC: 120V 60 Hz, DC: 5VAC: 120V 60 Hz, DC: 12VAC: 120V 60 Hz, DC: 12VAC: 120/240V 60 Hz, DC: 5V
Dimensions17.3 x 12 x 17.7 in25.1 x 17.3 x 18.3 in24.5 x 17.5 x 20 in20.9 x 18.3 x 19.4 in23.2 x 17.7 x 20.1 in27 x 21 x 25 in
Weight39 lbs95.7 lbs105.8 lbs79 lbs103 lbs237 lbs
Low Oil Alert/ShutdownYesYesYesYesYesYes
Tank Size (Gas)1.1 Gal.Steel, 1.6 gal3.4 gal4 galSteel, 2.3 gal6.9 gal
Run Time11.5 h (gas); 34 h (20-lb propane) at 1/4 Loadat 25% load 7.5 h (gasoline)/ 14.5 h (propane)at 25% load 18 h (gasoline)/ 22 h (propane); at 50% load 15 h (gasoline)at 25% load 22 h (gasoline)/ 21 h (propane)at 25% load 14 h (gasoline)/ 21 h (propane)at 50% load 11 h (gasoline)/ 4.5 h (propane)
Idle Control/Economy mode------
Cooling SystemAir CooledAir CooledAir CooledAir CooledAir CooledAir Cooled
Engine Type79 cc OHV 4-stroke192 cc Champion 4-stroke224 cc OHV 4-stroke224 cc OHV 4-stroke212 cc OHV 4-stroke459 cc OHV 4-stroke
Featureslightest 2500-watt inverters in the industry, a 12V automotive-style outlet, plus a handy dual port USB adapterInexpensive; Several accessories included; GFCI Outlets; Electric start; Dual FuelCO Sensor; Several accessories included; RV Ready; Remote start; Parallel capable; Dual Fuel; Inverter; Quiet for its power (52 dBA)
Several accessories included; RV ReadyParallel capable; Dual FuelInverter; Lightweight for its kind (79 lbs); High run time; Fuel efficientSeveral accessories included; RV Ready; Electric start; Parallel capable; Dual Fuel; Inverter; Quiet for its power (61 dBA); Fuel efficientSeveral accessories included; USB-C port; ATS plug; Remote start; Parallel capable; Dual Fuel; Switch On Demand technology; Inverter; Quiet for its power (68 dBA); High run time; Fuel efficient
TypePortable GeneratorPortable Generator RV ReadyPortable Generator RV ReadyPortable InverterPortable Generator RV ReadyPortable Inverter
Consumer Warranty3-Years3 Years3 Years3 Years3 Years3 Years

I am a mechanical engineer with years of experience working on Internal combustion engine and fixing electrical and mechanical systems, generators, transfer switches, and equipment related to storm water and sewage pumping stations.