It is an aspect that only triggers with incinerate and deals direct damage.
Incinerate without aspects is useless, but none of them buffs this extra direct damage.
The equivalent to overheating is about 10%x increase on incinerate. So nearly every aspect outperforms overheating.
Does anybody has a good use for this aspect I just dont get?
EDIT after patch and buff:
Thanks for the buff, I guess.
Unfortunately it still does nothing useful.
The core problem is the stand alone damage. Even with a fully optimized build flamethrower staff reigns supreme over flamescar and overheating on focus.
Overheating does now about 500k dps, great at the start, but useless in torment 2 or higher.