ðɪs ɛkstɹˈiːm hˈiːt, ɐkˈoːɹdɪŋ tə hˌɪm, kæn lˈiːd tʊ ɐ sˈɛlfkənsˈuːmɪŋ flˈeɪm ɪf ɪɾ ɪz nˌɑːt kˈuːld baɪ ˈɛɹ fɹʌmðə lˈʌŋz.
This extreme heat, according to him, can lead to a self-consuming flame if it is not cooled by air from the lungs.