Home Docs General

What is the...

What is the K factor of a firebrick?

Updated on Aug 10, 2026

sidebar-icon
The K factor is a measurement of how fast energy travels through an insulating refractory firebrick.
What is the difference in the cost to fire a kiln in a warm room compared to firing in a cold room? Why does my kiln have a 1/2" hole in the center of the lid?