Asteroid-Man said:
Where on earth did you get that number for the temperature of Hoth or that flawed logic on how ice works? The ice would be melting because of the heat contained inside the cave being emitted by Luke and the Wampa. Secondly, lighting a match wouldn't suddenly make everything that much warmer. Third, the ice walls in Echo Base should be wet, but not completely melted. Ice works to contain heat - that means it can remain cold from the freezing temp outside whilst containing the heat inside, without melting the wall. People light fires in igloos that reach over a 100*C, and the igloos remain in tact AND contain the heat inside. If you sit in a car in the winter time, eventually, the windows fog up and the car gets warm because of people's body temperatures. Thing of how much heat the Wampa alone gives off if it can survive on Hoth.
That temperature was just made up, lets say it's just a little exaggerated. The wampa lighting a match was just put in for comedic effects.