Quote:
Originally posted by freeloadingbum
Since your not trying to get the water below ambient temp, A bong isn't worth the bother. A large car rad should easily get the water 4 or 5C above ambient without all the hassles of a bong.
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A car radiator or even some heater cores in sequence. If it is going to be outside you will not need to worry about the noise. Get one of them 19" house fans and a matching car rad and shroud it together somehow! Or better yet 2 fans one on each side!

Man I gotta go before I get to exited!
Good Luck!