The Osburn AC03030 high-density refractory brick is a replacement firebrick sized at approximately 4″ × 8″ × 1¼″ (pack of nine) that fits many Osburn wood stoves and inserts. Designed for use in high-heat environments, these bricks help maintain safe operation of your appliance by protecting the firebox walls and managing heat-retention. Installing fresh refractory brick can improve the stove’s lifespan, efficiency and safety.
These bricks are constructed from dense refractory material that resists thermal shock and gradual wear. By replacing damaged or worn bricks, you maintain proper combustion chamber dimensions and insulation, which helps stabilize burning temperature and reduce stress on your stove’s structure. This means fewer maintenance issues and more consistent performance from your wood heating appliance.
Compact and straightforward to install, the AC03030 brick set offers a cost-effective way to restore or repair your stove’s firebox lining. Because proper lining supports efficient burn patterns and protects the stove body from heat damage, this part supports long-term durability and peace of mind. Upgrade your stove maintenance with this genuine replacement firebrick set today.
