Several people have asked me about the subject lately so here is a link to an article I wrote on the topic. Don't listen to people that suggest you shoud place coals directly on the mu'essel, you only do that briefly when smoking tombac. Anyway, here is the link - http://www.hookah-life.com/events.htm
let me know what you guys think and ask any questions. I suppose i'll bang up something about smoking tombac and jurÔk although the latter is tough because it varies so much with the brand.
New comers to narghile stuff should read the sensible smoking article because far to many people in this hobby are too reckless and sickness is far to commonly ask about here.