Home Depot has the Sportsman 4,000-Watt Dual Fuel Powered Portable Generator, Runs on LPG or Regular Gasoline, for just $249 with free shipping.

Description:
Great for running the RV while out on the road or for keeping essential appliances going during a power outage, the Sportsman Series 3500/4,000-Watt Dual Fuel Generator has the power and flexibility to handle the task. This generator runs on either unleaded gasoline or propane gas, so you can use whichever fuel is more easily available or affordable at the moment.

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