Using PI Heater in Dusty, Damp, or Demanding Settings

https://silicone-heating.tearosediner.net/temperature-control-for-a-silicone-heater-sensors-setpoints-and-stability

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 pi heater works best when these parts are planned together. The heater itself has limits and strengths