A few things to remember that makes a huge difference in the fire/sparks/heat output is the actual wood used to burn, and how you have it setup to burn.
Not enough people know which types of wood (tree) burn hot or fast or slow or likely to contain lots of air(water)-pockets that cause the wood to pop and send sparks flying.
I ride a recumbent.
I like to HAM it up on the CW.
I use Linux.
I play go.
Of course I sleep in a hammock!