Running on either gasoline or propane, the Firman Power Equipment 5700 Watt Dual Fuel Electric Start Generator - cETL Compliant gives you options along with peace of mind. The extended regulator hose allows for the option of using an existing propane tank as your fuel source. The cast iron sleeve provides durability, while the wheels add maneuverability. The 3-in1 data minder monitors running hours, voltage, and frequency. You can rest assured that your basic power needs will be met with this easy to use, easy to start, and easy to maintain generator.