June 8, 2026
CAUTIONS CAUTIONS Support> Cautions> Thermocouples Thermocouples In automatic kilns, thermocouples must extend at least 1" (2.5 cm) into the kiln from the interior surface. The measuring tip must be exposed inside the kiln—if buried in insulation, it will read a lower temperature than the actual kiln temperature, potentially causing overfiring. Replace thermocouples when they are no longer providing accurate readings or are corroded.

June 8, 2026

Thermocouples

In automatic kilns, thermocouples must extend at least 1" (2.5 cm) into the kiln from the interior surface.
The measuring tip must be exposed inside the kiln—if buried in insulation, it will read a lower temperature than the actual kiln temperature, potentially causing overfiring.
Replace thermocouples when they are no longer providing accurate readings or are corroded.

https://hotkilns.com/cautions/thermocouples