The A-iPower SUA1200ED is a portable generator that features a peak wattage of 12,000 watts and a running wattage of 9,000 watts. The engine is 459 cc and it comes with an electric start. It also includes a recoil starter in case the initial starting system fails. The SUA12000ED works with unleaded gas containing 10% or less ethanol. It has a 7-gallon fuel tank, allowing it to operate for up to 5 hours on half of its maximum capacity. It may run for up to 10 hours on half-load if you're using propane. The noise level of this machine is 69 dBA, which is one of the most quiet in its class and less noisy than background music.