K23 K26 K28 White Mullite Refractory Insulating Light Weight Fireclay Thermal Insulation Brick Insulation Fire Brick for Furnace Lining

K23 K26 K28 White Mullite Refractory Insulating Light Weight Fireclay Thermal Insulation Brick Insulation Fire Brick for Furnace Lining. Low Thermal Conductivity: Minimizes heat loss to improve furnace energy efficiency and reduce fuel costs. Tired of High Energy Bills? Our insulating bricks reduce heat loss and cut fuel consumption significantly. Up to 30% Energy Savings: Lower thermal conductivity reduces fuel consumption compared to dense bricks.