Hi,<div><br></div><div>I just remembered this technology ... it can boil water from plain old sunlight ... it is like a clear thermos with a black pipe in it ... the pipe absorbs heat, which cannot transfer back out because the space in between is a vacuum, like in a thermos.</div>
<div><br></div><div><a href="http://www.solarpanelsplus.com/thermal-how-it-works/">http://www.solarpanelsplus.com/thermal-how-it-works/</a></div><div><br></div><div>Very good, reliable way to heat water very very hot.</div>
<div><br></div><div>Finding it is the challenge.</div><div><br></div><div>Sage</div><div><br></div><div><br></div>