Posted: Tue Oct 24, 2006 12:47 pm
Are you looking for a de-icer or a heater?
Would a battery-powered heater be a possibility (meant for stock tanks, but maybe you could adapt it?) ?
http://www.hydrogenappliances.com/hotwater.html (scroll halfway down the page to see what I'm talking about.
"You become responsible, forever, for what you have tamed." -Antoine de Saint Exupery-