Common Failure Causes in Glass Heater and How to Prevent Them

https://thermal-tech-hub.scriblorax.com/posts/ito-glass-heater-design-basics-power-shape-sensors-and-control

Many heating problems look like a power problem at first. In practice, the cause may be contact, heat loss, sensor position, or poor fit. A glass heater works best when these parts are planned together