Fits models: #1 Arch Brick is used in arch construction and found in Bailey Gas kiln models 38/24, 48'31 and in 18-C #1 and #2 are used.
Size: Arch brick measuring 9" x 4.5", tapering from 3" to 2.73".
Using it: This is a soft insulating fire brick used when replacing or repairing brick in gas kilns. This brick can be cut with hand and electric powered saws.
Insulating Fire Brick (IFB) is a lightweight, porous ceramic brick designed to provide thermal insulation in kilns, furnaces, and high-temperature ovens, minimizing heat loss while withstanding very high temperatures (typically 1000–1650 °C / 1830–3000 °F). IFBs are engineered to combine low thermal conductivity, high-temperature stability, and light weight, using a porous ceramic structure that balances insulation with durability.