The preferred way to burn this kind of pure incense seems to be on a charcoal fire. I don't have any odor free charcoal and I'm hesitant to burn charcoal inside anyway. I tried someone's suggestion of putting a lump of myrrh on the base of a Coke can, over a tea candle. The Coke can base got hot but after an hour the myrrh had barely discolored. All I smelled was burning candle wick. I've seen mentions of electric incense burners but didn't find them on any of the incense sites I visited.
What should I try next?