NorthStar Portable Dual Fuel Generator - 10,000 Surge Watts, 9450 Rated Watts, Electric Start, EPA and CARB Compliant, Model# 16956 Dual fuel operation runs on natural gas or propane Can be connected to your home&#39;s natural gas or propane lines 10,000 surge/8400 rated natural gas; 10,000 surge/9450 rated LP Honda GX630 OHV engine with electric start (battery not included; requires battery, Item# 349900, sold separately) High-quality 100% copper-wound brushless head with low THD for safe use with sensitive equipment