Q: How do I know it is ready to vape and how long do I need to hold the start button?
A: When the unit is on, the start button will be blue, you should press and hold the start button until it turns green. It will vibrate slightly and then change green signaling that the chamber is at your desired temperature. The chamber is only being heated while the start button is being pressed. The first few presses the Square may need several seconds to heat from room temperature but as the chamber becomes heat soaked it will require less time between draws.
Green means that the chamber is to your desired temperature but if you would like hotter, more visible vapor, you can continue to press and hold the button while it is green but please note that the duration of pressing is continuously applying heat to the chamber and therefore may cause combustion if held for to long. We recommend trying different combinations of temperature, material and applied heat / press duration to find the method that works best for you. If you continue to hold the start button for several seconds after it is green, the Square will vibrate a second time and auto turn off. This is a safety feature to prevent combustion and to protect the Square from overheating.