The actual blast furnaces burn coke, so you have to have an air supply to provide the oxidizer. This all takes place in a tightly confined area, so you don't have a natural draft to help sustain the heat release. It took nearly an hour for the Twin Towers fires to heat the columns to their failure point. It is a matter of how fast you are burning the fuel.
It was just hanging around in a pool slowly heating up the area then. It also blew the lobby windows out with a fireball after coursing down the shafts.
It's called a blast furnace for a reason.
The actual blast furnaces burn coke, so you have to have an air supply to provide the oxidizer. This all takes place in a tightly confined area, so you don't have a natural draft to help sustain the heat release. It took nearly an hour for the Twin Towers fires to heat the columns to their failure point. It is a matter of how fast you are burning the fuel.
It was just hanging around in a pool slowly heating up the area then. It also blew the lobby windows out with a fireball after coursing down the shafts.
I really don't know what you are talking about.