ʻO ka paipu mālama wela (Heat preservation pipe) he paipu kila i hana ʻia e ka ʻenehana mālama wela a ma lalo o ka hana o nā ʻano hana like ʻole a me nā media waho e hōʻoia i ka hoʻokō ʻana o ka wela o loko a me ka mahana o ka paipu kila hana i nā koi. no ka hoohana ana.