On Sun, 23 Sep 2007 21:57:56 +0800, OldNick
wrote:
....
Then how do you keep the freshwater tube so cool? It has to be a _lot_
cooler, not so?


I'm probably going to regret responding, but I will anyway, with a
question:

What is the difference in temperature between steam and water,
both at the boiling temperature of water, whatever it may be?

Cooler means lower temperature, right?

OK you can now answer your own question.
I hope.

Brian W