If yer lucky, they collapse after the stove has cooled. Those poles will buckle with as little as 6" of snow. The condensation isn' t a problem as long as the stove is going. If it goes out on a cold night, yer breath will become a layer of frost on the ceiling, wetting all yer stuff the next day. Best to keep the stove going a while after you leave in the morning to dry everythin' out good.