Maintenance Planning for Equipment Built Around a Glass Heater

https://thermal-component-hub.clearminster.com/posts/where-silicone-heaters-are-used-in-modern-industrial-applications

In camera windows, a glass heater must deliver heat in a controlled way. It uses a glass panel combined with a conductive heating layer or heater element. One useful trait is anti-fog capability. Still, thermal stress can change the result