For women only. She is the deity of the domestic fireplace, and protects the home — provided she is looked after properly. She must be carefully tended. Only pure water must be used if a hearth fire needs to be banked.
Fine ashes must be spread on top of the sleeping embers at night to prevent her from getting up and going for a walk. You do not want a fire goddess wandering around your house at night.
The flame is sacred and must only be allowed to go out at the time of Rasa — when new sacred fire must be obtained from the sacred source and transported by human chain or possibly a relay race for the re-kindling ceremony.