WRT4536 models feature Red or White refractory panels. This fireplace features a 30 tall opening with refractory 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.Massive smoke dome for reliable operation Fully insulated firebox for increased performance in colder climates Refractory panels in a variety of colors and patterns with integrated ash lip Heavy duty cast iron log grate with rugged forged andirons Hidden ash dump with pull ring Easy access damper control Includes mesh fire screens Dual (left hand right hand) outside air kits available for maximum performance Durable textured powder coat finish Uses ihp 12 dm (1700) double wall air cooled wood burning chimney Uses ihp 12 ht (2100) heavy gauge double wall air cooled wood burning chimney, recommended for cold climates (required for canada) 20 Years limited warrantyDepth: 28-1 4 Height: 67-1 8 Weight: 550 Width: 45-1 4