Hestia.
Vesta.
Household and hearth fire
Hestia was the Greek goddess of the hearth, family, home, and fire
As a goddess there was very little she did not know.
Hestia is the goddess of the hearth, family, and home.
Since she is the goddess of the hearth, Hestia can control a fire.
Hestias' symbol is the hearth fire, as she is the goddess of hearth and home.
That of the goddess of home, hearth, fire and cooking.
I'm not aware of a Roman goddess of fire, but the goddess of the hearth and the home was Vesta, whose priestesses were the Vestal virgins.
Hestia is goddess of fire, and as the home/hearth is on earth, also a goddess of it as a granddaughter of Gaea, the Earth personified.
Hestia the Goddess of Hearth was identified because she took care of the hearth of fire.
The Greek goddess Hestia's symbols are the hearth and tamed fire.