There is some conflict between groups on this and other issues. Since there are no defined denominations of Zoroastrians, the conflicts are difficult to describe. There are over 100,000 practicing Zoroastrians and they are mostly in India. There are some groups in the West also. Their temples are called Fire Temples.
Fire is very important.
For most it is a symbol of Ahura Mazda but some Zoroastrians actually worship fire itself. The universe was created by fire, is maintained by fire, and will be consumed by fire. The Earth was born out of cosmic fire and at the end will be consumed by cosmic fire. Fire purifies everything. Thus spake Zarathushtra.