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Old 10-03-2012, 10:26 PM   #6 (permalink)
EV test pilot
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Join Date: Jan 2008
Location: Oconomowoc, WI, USA
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Originally Posted by Cobb View Post
You boil it in hot water til the crystals melt, then when you want heat flick the corner of the disk and it will go from a liquid to a solid and make a hell of a lot of heat.
I had almost forgot about those phase-change heaters. Those things are great! I was talking with somebody earlier this summer about some sort of heat system for hybrids that would do something like that, but automated for car heating and cooling systems.

I'll have to look into that a bit more.....
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