I just keep it simple and vent the hot & humid air outside. The new air is drawn in from the house, which is a good thing, since lower humidity air will allow for better evaporative cooling. Also, I run my skimmer air intake from outside as well... the O2 boost from fresh air keeps the pH higher in the tank.
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"If at first, the idea is not absurd, then there is no hope for it"
-Al Einstein
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