I have actually tried using 100W Halogen bulbs as a heat source, running them at much lower than their rated power.You could use a lightbulb or foil.hahahaha
It works, but it's really inefficient. The glass takes a long time to heat up to the right temperature.
I was hoping this would make a "forever" coil, since the halogen bulbs have a very long lifetime (and much longer than that if you
run a 12V bulb at 3.7V) and since the juice never touches the coil. Perhaps with the right wick this could still work....