CFKJ 18-Piece Insulating Fire Bricks — 9 x 4.5 x 0.79 in, 2310°F Rated

Overview

Upgrade your heat-facing spaces with the CFKJ 18-piece insulating fire brick set. Each brick measures 9 inches by 4.5 inches by 0.79 inches, a size that fits a range of ovens, kilns, and hearths while enabling straightforward stacking and alignment. Crafted from a sturdy blend of alumina and silica, these bricks are designed to endure demanding conditions and help protect underlying walls and surfaces from intense heat.

With a superior high-temperature rating of 2310°F (1270°C), this 18-piece collection is well suited for environments where heat is a constant factor. The result is a practical option for DIY renovations, shop upgrades, or professional setups where reliable thermal performance matters. While performance can vary with installation and usage, the bricks are positioned to support consistent heat containment and protection over time.

Key specs

• Size: 9" x 4.5" x 0.79"
• Temperature rating: up to 2310°F / 1270°C
• Pieces included: 18
• Material: Alumina & Silica blend
• Brand: CFKJ

Why this set can fit your project

These bricks offer a balanced combination of heat resistance and handling ease, making them a versatile choice for lining or insulating various heat-facing spaces. The 9" x 4.5" x 0.79" dimensions align with common sizing needs, helping to simplify cut-free installations or clean replacements.

Practical applications

• Ovens and wood-fired ovens for consistent, controlled heat zones
• Kilns and heat-treating spaces where protective lining matters
• Metalworking forges and hearths needing reliable insulation and protection
• Fireplaces and handcrafted hearth projects that benefit from enhanced heat management
• DIY renovations and upgrades where a robust insulating layer improves performance

In real-world use, the combination of a dense alumina-silica composition and a broad temperature range helps minimize heat loss and shield surrounding materials from thermal stress. This set is designed to support practical, long-term use in heat-oriented spaces, without implying guaranteed outcomes in every scenario.