The NUBE is the third water-from-air machine we have had over the past 25+ years and is by far the best. It is extremely efficient, and in our humid Florida summer climate, it makes a gallon about every two hours. It will be less in the winter, of course, but is still extremely efficient. For drinking and cooking, we only condense water from air and do not connect the unit to municipal water. I have a long history of kidney stones, and the very pure, mineral-free water condensed from the atm...