I bought this to power the refrigerator and some other essential items during power outages. I have not run it yet during an outage, but did a test run and it performed well. Please note that when you select 240V the 120V outlet does not supply power. Likewise, when you select 120V the L14-30R outlet does not supply power.The screen on the exhaust popped off when I started the unit the first couple times. I am waiting on customer service for a response.