Quote Originally Posted by wolfy-hound
Very nice research. I have only found ONE use for a heat rock. I cut the cord off and throw it at someone. I've actually bought them at yard sales for $.50 or whatever just to cut to cord off and throw them away. I hate the things.
Wolfy
Meh... I don't think they're evil. It's just a heat source like any other. If used irresponsibly they can be a potential hazard just like an exposed bulb or unregulated UTH. I'm sure a heat rock would be fine if used with a rheostat or thermostat, but too often the pet stores that sell these devices don't educate the consumer nor does the packaging.