I am circling back to your post in case this helps…there was an article in the NYT about gas stoves leaking methane even when turned off. It occurs to me that with all the jostling, the gas connections in an RV could work loose enough to leak a tiny amount of propane. Also it sounds like some ovens leak quite a bit during use, as the way they control temperature is to cut the flame off and on. So it’s not so much needing a fan, as needing an exhaust fan, when using the stove and regularly tightening any gas connections.
