Just rig'd up somethin' similar to test, kinda worked but the vapor was smoking hot, like 12 volt hot, tooooo hot. took about 30 sec for the bic i was holding under the vial to get the glass hot enough to turn the PG liquid into a vapor, but when it did the liquid sputtered and pop'd an made some very hot vape. I can't imagine this be'n practical, but ya, it works.
ohh, and the bic of course left a burnt residue on the outside of the glass,,,,but the vial did cool down enough to handle in just about a min.