In addition to doors and windows, tempered soda lime glass is being used for numerous applications that require heat resistance. For example, it is being used for oven door windows. Below is an example of a specific application for a heat resistant glass.
A company manufacturing grow lamps had the lamps in a recessed reflective metal box with a glass cover. They used fully tempered glass as a cover for the box. During initial testing of this design, numerous pieces of the tempered glass cover plates failed on the long side of the rectangle. These tempered glass failures initiated on the ground edge face. The fact that the glass failures occurred during initial testing means that tensile stresses were created at the ground glass edge face by the expanding glass center. The light source preferentially heats the center of the glass plate causing it to expand; this puts the heat protected edge of the glass in tension (i.e. the edge is cooler). Because the edge face is ground glass and is not fully tempered, it is weaker and can fail from the tensile stresses generated by the lamp heat.