Alright so I watched sambooka's tutorial on you-tube about how to set up your hookah, just wanted to get that outta the way so I dont get that answer over and over again. Now, with that being said, I have this little 13" hookah, not so high-quality but it is airtight. It came with hookah-hookah brand shisha and nahkla self-lighting coals. Heres my problem. Ive set it up so i had one coal on a single sheet of aluminum foil, burned my shisha. 1/2 peice coal single foil burned shisha. 1/2 coal double foil not burned but no flavor whatsoever. so far I have only smoke hookah well once and that was at a party outside and it was dark so i have no idea how that person set theirs up. i would love the help cause I have watermelon and apple shisha and they both smell way to good to not enjoy smoking.