Yamaha generators have the longest emission engine durability ratings issued by the Environmental Protection Agency and the California Air Resources Board. Gasoline petcock lets you shut off the gas to run the carb dry for storage and helps prevent stale gas problems. Fuel gauge allows fuel level to be seen at-a-glance. This model boasts High Current output which is designed specifically to increase motor starting capability and to improve air conditioner starting. This High Current model starts most high efficiency 13,500 but AC in temperatures up to 110-Degree F. The EF2400iSHC has an aluminum die-cast frame, combined with an aluminum TCI rotor and other weight-saving measures to provide a powerful and compact generator weighing only 75 pounds. The EF2400iSHC uses Pulse Width Modulation (PWM) to produce high-quality electricity comparable to the power supplied by public utilities. Use this generator with confidence as a power source for microcomputer-controlled appliances and other devices with built-in computer functions. Yamaha’s Smart Throttle feature automatically adjusts engine speed to match the load. The result is quiet running, maximum fuel efficiency and a run time of 8.6 hours at 1/4 capacity load. Yamaha’s Oil Watch Warning System helps prevent engine damage from low oil and provides added peace of mind.