I used a piece of 10" or 11" unrolled aluminum flashing behind the front half of the vent opening. I just worked it down behind the tubes. It has worked fine since without cutting out the pilot flame at any speed. No CO2 detected. The fridge would automatically cut off when using propane when driving above 50 mph or in a strong side wind at any speed. For years I just used the 12v feature until I forgot to turn it back to propane one night. All 3 batteries were dead after 6 hrs. It does use a lot of juice on 12v.
jefe
