This generator runs on gasoline or propane, giving you the freedom and flexibility of fuel choice. The DuroMax 224cc OHV engine is a workhorse that provides plenty of power to handle multiple jobs, from powering high voltage appliances to heavy duty power tools.Get the maximum power from each of the 120-Volt receptacles. Choose between operating the generator at both 120V and 240V simultaneously, or at 120V only with full power. Ideal for usage with RVs. Protects your investment by automatically shutting the generator off when it senses that the oil is low. The power panel includes a wide selection of outlets for maximum compatibility in your applications including: 2 120V household GFCI outlets, and 1 120/240V 30A twist lock outlet. The panel also includes a voltmeter and 12V DC charging posts for charging external batteries. All DuroMax generators are both approved by the EPA (Environmental Protection Agency) and CARB (California Air Resources Board) and follow strict guidelines to ensure our generators are as environmentally friendly as possible.