On Sat, 18 Apr 2009 21:58:43 -0400, "Wilbur Hubbard"
wrote:

This is far more than proper distilled water using heat and condensation.

They used to make stills that ran off the exhaust heat from engine or
generator. They would give you several gallons of water for each
gallon of fuel burned. The evaporators on ships used to use the heat
from condensing water to boil more water at reduced pressure. They had
so called quadruple effect evaporators.

Casady