The DuroStar DS10000EH 10,000-Watt Dual Fuel Portable Generator is a low-noise generator on wheels that you can take with you wherever you go. It is a hybrid unit that runs on either oline or propane. This generator will power your basic needs, such as lights and refrigerator. Depending on usage, you can run the unit for 8 hours on and up to 20 hours on one tank of propane. The DuroStar DS10000EH has an air cooled engine with a low-oil shutoff.