WRT4842 models feature the revolutionary Purefire Catalytic combustion system, reducing emissions by 75%, meeting EPA Phase II requirements. Red refractory panels are standard. This fireplace features a 30 tall opening with firebrick extending to the front edge. Standard Barometric dampers are factory installed on both sides, allowing for two AK 4 fresh air kits recommended for maximum performance. These insulated fireplaces come complete with hidden ash cleanout and heavy steel grate with rugged cast andiron.12 Venting is required Uses 12 standard wood burning chimney 20 Year limited waranty Red full stacked brickDepth: 30-1 8 Height: 67-1 8 Interior: Refractory Style: Traditional Weight: 575 Width: 51-1 4