walgreens my friend. (i work there, thats how i know
they are $9.99 each. they go on sale about once a month for $7.99. pay attention to the ad. plus if you know someone there you can get 15% off.
i've had mine for about 6 months and there's no problems so far. my friend dropped my other one and it broke in half.
EDIT: wow i didn't read the whole post. you're talking about a electric hookah coal, not a electric stove to light hookah coals. i guess that's a fail for me.