Came home to smoke alarms screaming and thick smoke in the house, fire went out by itself when gfci tripped . Looks like OZ3 Generator burned up. And it was a UL labeled not a cheepy ebay made in china unit. Entire house full of soot. Tank was down to 76 degrees , but so far all seem ok. I lost one k3 as the wires got melted . gonna toss in some carbon and feed them and then meet cleaning people and adjuster in AM. This sux.