The FIRMAN W03383 Inverter generator features 3650 starting watts and 3300 running watts. Power is supplied by our Max Pro Series 193cc FIRMAN engine which runs cool and efficient thanks to its Phoenix Fat Head Block. Our Whisper Series muffler keeps the W03383 running a quiet 58 decibels – well below the standards set by the National Parks Service, and our spark arrester has been approved by the USDA Forest Service. The 1. 8-gallon fuel capacity provides a whopping 8 hours of run time. Starting is simple with the click of a button with the FIRMAN remote start system.