Would the war have lingered on? Don't forget the Germans were ahead on rocketry and the "bomb". If the Americans hadn't come in (and it was Pearl Harbour that did that) they, probably, would not have experimented with nuclear weapons and the Germans would have been, then, in a position to beat anyone.
Life is full of "ifs", though, isn't it? That's another story.
The apprentices' cabin, in Caltex, was next to the Chief Officer. I don't remember steam pipe problems. The Americans hadn't got around to fitting a/c in those days --- everywhere was hot in the Gulf!