2qwerty: I know that you are not referring to the current tragedy but in listening to all the reports this may simply be an electrical fire and nothing to do with the menorah.
I am openly stating that I am speculating:
1. The family is probably sephardi who generally light only 1 menorah (ner ish ubeiso)
2. According to some news reports, the call to the fire department was somewhere around 2:00 AM. Unless the family was away during the day I doubt that the menorah was still lit at that time.
3. The smoke detectors were operational and heard by the two boys on the first floor.
4. Electrical fires are known to erupt and engulf a house in flames in just minutes.
5. May HASHEM grant a nechomah to the Azan family.