Conduction is heat transfer via touch, like MFLB where the material touching the screen gets vaporized, or Pax with the heating around the sides.
Convection is heat transfer via air, like with the Cloud or Cera, where the hot air passing through vaporizes the material.
I would have to say both. There is a ceramic chamber. The bottom has several holes in it.
The screen is elevated slightly above the bottom of the ceramic holes.
The holes are there on the bottom. If for no other reason than to transfer heat through. Hence the screen above the holes.
I'm familiar with the difference between the 2.
The PnP transfers heat up through the screen in the bullet, passing through the herb to the mouthpiece.
The chamber walls heat up, the sides of the bullet heat up conducting heat on the herb.
I consider this both convection (air passing through the screen in the bullet through the herb into the mouth piece) and conduction (chamber walls heating up the sides of the bullet conducting heat throughout the herb, and believe me the bullets get hot!)
The vapormax is the same way without the bullets. (bullets almost fit)
Heat going through the bottom chamber holes, through the screen through the herb. The chamber walls get hot conducting heat. So you could say it's sort of both.
Call it what you will I suppose, It works very well.
@PPN I like the PnP very much on #1 and #2.
@charliedontsurf battery life has been awesome, I will get ABV pics tomorrow. Its lighter than the Pax on medium.