TH is nicotine
Heat can enhance nicotine's hit
Only slim ecig w/ some heat is KR808D-1 because it is a real 3.7v battery & the Vapor4Life WOW cartos are hotter on it than the usual amount of warmth from a slim ecig
Any more heat than that requires non-slim batteries. You need batteries 450mah or larger and then you can use low resistance atomizer and cartomizers which use battery charge faster to create more heat
And fake TH via throat sensation
QHit by Flavourart (FreedomSmokeUSA, Liberty-Flights, OneStopDIYShop.com)
And I think VaporNine has some other fake hit liquid
Or for other throat sensations - mint, menthol, pepper juice (FreedomSmokeUSA), cinnamon flavors, ginger flavors, other spices