I discovered a method to vaporise Weed & Hash for free.
With a lighter, a Pipe or Bong and 2 Pipescreens above the weed.

Put some weed in your Pipe and put 2 Pipescreens above the weed.
Finished.

Take your lighter and place the flame above the screens. Start to "smoke", fume or vape.
What comes out, should be Vaporiser Vapour ( much more thc, little condensate ).

If the weed starts to burn, hold the fire higher, place the screens higher or take a third screen.

Also good is vaping with bong and hot air gun. All you need is a bong with a bowl, that is big enough to place the gun in or on it and a hot air gun with a temperature around 250 °. I got a steinel hl1910 e.
You got to lay one pipescreen above the weed and start inhaling before the gun is placed on the bowl.