Pyromancers

The so called Fire Mages of Erenth are also known as the Pyromancers, the Sons of Arecelos, or the Priests of Maegara. Collectively, they refer to themselves as the Infernari. They are wizards operating outside Censure and are thus Hedge Wizards from the point of view of the Dweomersecte, though they belong to a very specific college.

While they do not have access to the same suite of spells that other wizards do, generally voluntarily confining themselves to those based on fire, they are able to cast those limited spells at a much higher degree of facility. They are also believed to be immune to the ravages of all but the hottest fires.

The Pyromancers draw their lineage from Sarseer, Niktalor I, Arecelos I and Vynse of the Dweomersecte. But none of those mighty wizards would have recognized a separate organization of Fire Mages, because it did not yet exist. 

In 4093 the Infernari was officially formed and it's membership split from the Dweomersecte when Peredik the Tall was made Archmage and Lara the Smouldering was ejected from the order. She was first to style herself, the Archflame and named those who defected with her, the Infernari.