Osburn Part Firebrick, 4 1/2" X 9" X1 1/4", Refractory

The Osburn Firebrick Set, part number AC07700, is a high-density refractory kit designed to line and protect the firebox of compatible wood stoves and inserts. It helps restore proper insulation while maintaining efficient heat retention during operation.

This set includes nine firebricks measuring approximately 4 1/2 inches by 9 inches by 1 1/4 inches. These bricks are engineered to withstand extreme temperatures and reflect heat back into the combustion chamber, improving burn efficiency and protecting the stove’s internal structure.

What’s Included: Set of nine (9) high-density refractory firebricks.

Installation Limits: Designed for use in compatible wood stove and insert fireboxes and must be installed in designated brick locations.

Compatibility: Compatible with Osburn wood stoves and inserts requiring 4 1/2" x 9" x 1 1/4" firebrick configurations.

• High-density refractory construction withstands extreme heat exposure.
• Includes nine bricks for full or partial firebox replacement.
• Reflects heat back into the combustion chamber for improved efficiency.
• Protects internal stove walls from direct flame contact.
• Direct replacement for worn or damaged firebox liners.
• Supports consistent burn performance and stove longevity.

This firebrick set is intended for replacing worn or damaged firebox liners, helping maintain proper insulation, improve combustion efficiency, and extend the life of the appliance.