I'm putting together an idea about a weapon (insert hand-wavy science here) that fires extremely high temperatures a very short range (100 feet or so). A Heat Shotgun, if you will. The idea is that this weapon, with a single blast, could turn the majority of a human sized creature to literal cinders and ash in a couple seconds. What kind of temperature are we talking about here? I assume that if you had some flesh softer than human (say about the consistency of an octopus?) it could be a lower temperature? If I connected an insulated conductive cable away from the gun and to a portable heat sink, would there be a problem conducting the heat away from the gun in that way?