An oil burner is another kind of glass pipe that is used to vaporizeoil by quickly heating the bottom portion of the round, ball-like bowl. Glass oil burners are designed to evenly distribute heat, allowing the essential oils to gently vaporizeand release their scent into the air Simply add water to the bowl at the top of the burner and then add a few drops of your chosen essential oil. Place a lit tealight candle underneath the bowl and wait for the water to start boiling. As the water boils, it will vaporizethe essential oils and release their scent into the air. This is one of oil burners in our store. find more there..syi