Talk:Firebending/@comment-108.196.110.22-20120601014524/@comment-4910024-20120603015922

True, but heat also has an effect. Blue or green fire is always hotter than yellow fire. Same goes for things being heated. Haven't you ever heard metal referred to as red-hot or white-hot? A trained metalworker can detect the temperature of the metal within a few degrees by just its color.