If fire is a burning marked with flame, then, no flame, no fire.
If there is heat without fire, then you know there’s a reaction brewing, transformational, even subversive. Therefore, no reaction, no heat.
Smoke without fire? Yes.
Smoke: visible gaseous effluents that emanate from substances on heat.
What’s causing him to boil?
The pot has eaten hot round peppers, its bottom must be hot. Who can see the coals.
When is a person undergoing simulated annealing?
Heavy heating followed by slow cooling of his ‘economy.’ The person becomes tempered and toughened. Heavy heating followed by rapid cooling might break a man or make him brittle. But then, man is not metal, there is will.