There are two main methods of heating that most vaporizers use: Conduction and Convection.
In simple terms, conduction is when your herb is heated by the hot walls of the oven and the heat radiates through, and convection is when your herb is heated solely by hot air, and your material does not necessarily make contact with any hot surface that can radiate heat.
As of now most portable vaporizers utilize conduction heating in their designs because it’s simpler, easier, and faster for most people to use. I’d say that the DaVinci IQ & PAX 3 are excellent examples of top-shelf conduction vapes, and I can’t really picture how much more innovation can happen here.
The area that can use improvement with portables, and the technology that’s a lot harder to perfect, is convection heating.
The Crafty and the Mighty by Storz & Bickel, which were released at the end of 2014, are the perfect example of top tier vapes that are a hybrid of both conduction and convection heating. The performance from these units is extremely impressive.
One of the first truly convection portables that I considered top tier was the Firefly 2. I still think it’s a great unit, but it has proven to be a bit difficult for some people to master and fully enjoy.
The latest vape to be released that is claiming pure convection heating in the Boundless CFV, and I just got mine the other day but so far I’m pretty impressed with the performance, and I’m very happy to see that strides are being made with hot air heating.
Hopefully more companies continue this trend of further perfecting convection heating inside of a small portable vaporizer, it really does provide a slightly different experience than conduction and I personally like it a lot.