Both of these designs are super awesome! IMHO, both of these HX rigs will be able to whoop out two tons of heat transfer through 1/4 inch tubing. They both look overbuilt and should last for decades. Good job, guys!
The statement Mike made was for the helical-type condenser like Ron built. Gas goes in up high, liquid falls and comes out down low. In a thermosiphon rig, this would also follow the temperature gradient induced in the HX, so the coolest liquid possible would exit at the bottom. With the linear arrangement that vwhead has employed, it could be argued that not as much subcooling would occur, since the refrigerant changes direction with regard to the flow of water. I believe it will work better than expected and much better than previous rigs. Why split hairs, what's an extra 5 or 10 watts when you're saving 1000 already?
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