it is burning, push ctrl + f and select fire
wisco11: plasma is not working. it has to burn at least 30 seconds
iamzach: oh wow! it works
SnowFlash383935: you can enable it.
Heat simulation is disabled, so...
I got it to burn >:) Turn on heat simulation and poke a hole in the middle and fill it with plasma for 5 secs then break a hole on the top and watch it burn.