Sheol (Hebrew word), Hades (Greek word) and Hell (English word), words used in The Bible seem to mean "the common grave of mankind".
However it is observed that the Christian concept of "Hell" is actually closer to an Ancient Greek place called Tartarus. Which is below Hades itself, which was used to torment and punish people, whereas Hades was just an afterlife prison.
In Ancient Greek literature, Hades (and Tartarus too) is certainly a fiery place. There are writings of a river in Hades made of fire in the called Phlegethon, which means fire, flaming or fiery.
fire
hades
Hades is a god. He is the god of the underworld, of course he could Hephaestus was the god of fire but yes.
When Hades became assocated with the Christian "Hell", also there is a river Pyriphlegethôn, which was a river of fire. Hades of course, is both the name of the Underworld and the name of its King.
yes
hades power is to rule the underworld and he has it as his own rule
Why yes he did, Hades had two brothers that were girls. And a pig that snorted.
Hades
god of fire
Hades resides in the Underworld.
Hades used the flames of the underworld.
Hephaestus, hades(probably).