When the rabbis of the Talmud instructed the Jewish people to light Hanukkah Menorahs (Chanukiah) for eight days, it was primarily for the purpose of pirsumei nisa, publicizing the miracle that occurred on Hanukkah. Therefore, maximum exposure is the goal. Ideally, the menorah should be placed outside by the front door facing the mezuzah. If that is not practical, then the menorah should be placed by a window that can be easily seen by passersby on the street or sidewalk. If that is not possible or practical then the menorah should be lit in the room of the house where most people congregate. Whether candles or oil with wicks are used, the flames should last at least thirty minutes and be lit as soon as three stars appear in the sky.