The explanations get longer and longer, while you still aren't doing any of that without a blast furnace or a kiln. "A building": that building wasn't anywhere near "enclosed". How long to burn up all of the JP in that relatively open space? How much JP was burned outside the structure entirely? How long, in that open space must the JP fire be maintained to cause the effect you're describing, noting that the entire steel structure: the entire building was effectively a 500,000 ton steel and concrete heat sink in north-eastern September winds? Add 12 more paragraphs describing how blast furnaces don't work.
The explanations get longer and longer, while you still aren't doing any of that without a blast furnace or a kiln. "A building": that building wasn't anywhere near "enclosed". How long to burn up all of the JP in that relatively open space? How much JP was burned outside the structure entirely? How long, in that open space must the JP fire be maintained to cause the effect you're describing, noting that the entire steel structure: the entire building was effectively a 500,000 ton steel and concrete heat sink in north-eastern September winds? Add 12 more paragraphs describing how blast furnaces don't work.