the ambient thing i can just understand, wind chill on my van happens driving along i have the temperature relay on the dash stood still i get near 90c travelling along it goes down to 72c, stop at the traffic lights it creeps back to 89/90c, so im seeing a windchill factor, but its useing ambient air on a hotter surface (heat exchanger/temp probe)
Unless you are living somewhere hotter than 72c which I doubt what you are getting is a cooling effect not wind chill as such. Wind chill in general refers to a temperature which feels colder than the ambient temperature due to the wind.
