As global energy consumption grows at exponential rates, so does the demand for energy solutions that are both more environmentally responsible and more efficient. The DuroMax XP4850EH has a dual fuel system that operates on either standard gasoline or cleaner burning liquid propane which can more than double you generators run time. With the XP4850EH, operating on propane will not gum up or foul your generators carburetor, and will give you quick, reliable starts every time. It only takes a few seconds to switch over from regular gas to propane, and with the flexible line, you can easily hook up any size propane tank including the one from your barbeque. And unlike gasoline, propane can be stored for years without going bad. The DuroMax XP4850EH unit features a 7 Horsepower, Air Cooled Engine and is designed with a Low-Oil Shutoff Sensor to protect the Motor. It offers the switching capability of running on Propane or Gasoline fuels. Built to offer more power and longer lasting dura