a great modification for the yong heng !!

This is a really good idea but you really need to have your coils vertical to be able to drain the moisture.

I agree with butch and the above posters comment that the coil needs to be vertical to not trap the condensed water in the bottom of the coils. I would also suggest placing a frozen bottle of water inside of the coils to further cool the air going to the second stage thus removing even more moisture from the air.