Pluto is the Roman God of Death, the terminally ill, and the battle wounded. Vesta is the Goddess of Hearth, Home and Family. They are two different Gods/Godesses.
The Roman god of Death was Pluto, the roman goddess of home was Vesta. From what I can tell there was no god that was both death and home, if you meant hearth and home then it is just Vesta.
