Just a couple quick questions, which way would i have to push the slider on this lamp dimmer to allow the heat tape to get hotter? Do i slide it UP or DOWN? Would allowing more heat make the little red light get brighter or fade away?

http://www.lowes.com/lowes/lkn?actio...-WH&lpage=none

And also, how long does it take for the Flexwatt to really heat up fully?