I wonder if any of you has come across and solved the problem of when the wind blows(as it invariably does in this country!) and the van is in a position to break the wind, my fridge gas vents x2 are into the wind, and a ****** to keep the gas on. I have totally blocked the top vent and down to a 1/3 on the bottom, it has helped, but fumes are sensed in the van?