Quote:
Originally posted by siavash_s_s
no the condensation is of the hot areas warming up the air to a big difference of temp witht he cold bits of the copper so the hot humid air condenses there. get a metal ruler and stick it on a hotplate or sotve and same thing will happen on the cold bits
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Edit: The server was having a fit when I first replied. Somehow my comment didn't show up.
No. Razor6 is right. Burning butane (or other lighter fluid) results in water being produced, and it is this water vapor that is condensing on the 'cold' waterblock.