It is to my knowledge that these E-Ciggarettes and E-Cigars dont heat up enouph to release the THC.

ALSO..

instead of doing all of that, just take your tobbacco juice ( Whatever that stuff is ) and get some HASH OIL and mix it together. let that sit for a day.
( probably dont even have to let it sit, you can just smoke it right after you mix it.

But yeah.... i think the main problem is there are some E-Smoke products that do not have a high enouph temperature to release the THC