The wax will melt at a steady pace when the burner is on. However, if you want to make your wax melts last longer, try using a timer. When you’re using your homemade wax melts, set a clock for 15-20 minutes. That’s all you need to get your home smelling beautiful. When the time is up, blow out the candle under the wax melt burner. By only melting your wax for short periods, you can make sure that it lasts longer than it otherwise would. Continuously burning wax melts will mean that you get through them super fast and you may not notice a huge change in the scent of your home.