THanks: I finally found how to reach Tech Support at the manufacturer. They told me that a draft will not blow the piolt out since it is a sealed unit.. They said that in a windy location like this that I need to put a sheet metal "wind shield" around the vent.
BAsically it would be a piece of three sided sheet metal. which would cover the sides, left & right and then the front. The bottom and top would be open. The left & right sides of the cover would be bent to create a flange to attach to the house.
I will try this and see if it works.. They said that in windy areas, which this is since it is at a beach on the weather side of the house that this should solve the problem... (FIngers crossed)