Generac's PM4500 Generator features 4500 Starting Watts and 3600 Running Watts, providing powerful performance and long runtimes. The COSENSE® Technology offers comprehensive protection from hazardous carbon monoxide, while the POWERDIAL™ simplifies the startup process with an integrated off/run/choke knob. The 224CC OHV engine ensures 19 hours of run time at 25% load.