Kai
I appreciate your concern. As far as I can tell, looking back on the fires, they are fueled by emotions, usually anger. I would guess medication can subdue the urge, as I was medicated for a time before the hospital fire when I was a child. I could joke and say I truly have an explosive temper, but it isn't really a joking matter.
In any case, it occurs to me to wonder if my mother might have had some power she kept hidden. Fire is not an element vampires can control, as fire is one of the few things that can kill you. It is worth consideration, at the least.