The key phrase, which the B’er Moshe points out was a mistake in the metzius, is:
??? ??? ???????? ??? ???? ?????? ??? ????? ????? ???? ????? ???? ???? ????? ?? ??? ????
This is one reason why I thought R’ Chaim Ozer meant molid; I didn’t think the one with whom he is disagreeing thought that the fire itself existed (the main reason for my understanding is that he also says molid, not molid aish.)
I need more time to read the Bais Vaad for a more solidly grounded opinion.