Yeah, you can smoke Salvia with a vaporizer, but you have to be VERY careful with the amount of salvia you use!
"Extract-enhanced leaves can also be smoked. Extract-enhanced leaves can be very strong and should only be smoked when a sitter is present. It is possible to vaporize leaves or extract in a special vaporizer that heats up material without burning it. Vaporization can be deceiving. Because very little smoke is produced, it is possible to inhale a very large dose without realizing it. Anyone trying vaporization absolutely MUST have a sitter present. Many commercial vaporizers made for Cannabis will not work for Salvia. Special Salvia vaporizers can be built easily, but vaporization is not for those new to Salvia.
Vaporization of pure Salvinorin A is also possible, but it is not recommended! Unless the dose has been measured very precisely, this is extremely dangerous, as it's very easy to vaporize too large a dose. To be done safely, vaporization of salvinorin A requires weighing the dose on a very precise chemical balance capable of weighing in micrograms (millionths of a gram). These analytical balances cost well over $1000. There are now available standardized doses of Salvinorin A on leaves, using such preparations enables one to inhale a known precisely-measured dose of salvinorin A. This makes it possible to experiment with salvinorin A without having to buy an analytical balance, and it greatly reduces the risk of overdose."