In Collin de Plancy's Dictionnaire Infernal, Xaphan was one of the fallen angels who rebelled with Satan.
Rank
Xaphan is a demon of the second rank.
Powers
Xaphan is said to have an inventive mind and came up with the idea to set fire to heaven before he and the other fallen were cast out.
Appearance
Xaphan has a bellows as an emblem, but must fan the flames of the abyss with his mouth and hands.