Question: what is the most fuel efficient generator?
Answer: Westinghouse WH2400i Portable Inverter Gas Generator. Features. ...  Sportsman 4000 Watt LP Generator. ...  Honda EU2000I 2000 Watt Inverter Generator. ...  WEN 56200i 1600 Watt Gas Powered Portable Inverter Generator. ...  Honda 7000W Inverter 120/240v Fuel Efficient Generator with iMonitor LCD.