It looks like the ethanol burner mod now generates some sort of heated condition when used. As far as I can tell it is intended to raise internal and external temperature as the ethanol is burned. And this makes sense. And if I activate it for a few hundred kJ and walk around it seems to work as intended.
Now after I stop the burner it keeps heating for a short while, as the heated condition fades. Still good so far. However problems seem to appear after the heated condition goes away. At this point I would reasonably expect that the heat would stop being produced, so I wait a few bit, not noticing anything, and then do some crafting task that takes a few minutes. And then end up with character taking damage because apparently the burner is for some reason still pumping out a ridiculous amount of heat.
Seems like either the heated condition should have extended duration, so that it accurately maps to when the player is putting out heat, or the heat continues to be generated well beyond its intended end point.