@Ensar: a page back you mentioned that you use an electric heater for Oud! I would have thought you would follow a more the Traditional way as in Charcoal and some ash. Is your choice is based solely on convenience and ease, or lack of clean charcoal type and proper ash or does the electric afford you a more subtle Olfactory experience? Do you also manage to extract all the oils and scents from the electric heater? In my experience with the electric heater, the one sold by Mermaid, that even at the highest setting there always remain a certain amount of oil and resin in the chip that is not extracted unless I use Charcoal and achieve that certain high heat temperature for them to start bubbling and coming out.