This video is the heating demonstration of Silica glass by far Infrared Panel Heater.
Related page:
No.16 Cold air cooling of Silica glass 
Uniform heating of Glass plate 
The aluminum tube in a glass pipe is heated with a halogen point heater 
The stainless pipe in a glass tube is heated with a halogen point heater 
Soda-Lime glass heating 
No.15 Heating of the LCD cover glass 
No.3 Heating of glass plate 
Summary of Far-infrared Panel Heater