I heat sweet almond oil in a small heatproof glass dish over a tealight. I then pop small pieces of resin in the hot oil. The fragrance is released - no smoke, but it still smells warm and delicious. The censer I use is like this. Was a good solution for living in a small space. If you’re wanting to try this I suspect the stone diffuser might be too far away from the tealight. I’ve tried frankincense, benzoin, and an amber blend.