I can only speak to my use of the unit I used. I do not know the how, when, how much etc.. I am just a heady friend that can put the hours on the units needed for proper testing.
"They" are a long list of collaborators and they are all highly trained engineers.
The batteries are Sony, yes plural.
The high heat I speak of is the heat I ASSUME is not making it to the dry herbs. Just like any unit there is heat loss. None of that "lost" heat is making it to my lungs or hands... that is what I do not get either lol.
I have used, MFB, Iolites, Vapairs, Volcanoes, Pax , Blunt and a few others..
I am not sure where the silver and ss steel are in the unit.