The hobbit pipe has a builtin cigarette filter holder and a fitted soapstone stand (I dont even smoke but found it cool haha)

The vaporizer pipe has these big slits at the bottom and holes above, meant to reduce heat. It can be heated with a flame and steams the herbs inside, no burning, ever!

But you need propane or some other clean gas, candles and butane have nasty particulates and tar inside (the bottom literally gets black) that you dont want to inhale ;)