VRT4542 models feature red or white refractory panels. 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 AK4 fresh air kits recommended for maximum performance.99.9% Heating efficiency when paired with a vent-free gas log set Fully insulated firebox for increased performance in colder climates Refractory panels available in a variety of patterns and colors Includes mesh fire screens Dual (left hand right hand) outside air kits available for maximum performance Durable textured powder coat finish Choose a beautiful and reliable Superior vent-free log set for best results. 20 Year limited warrantyBTU: Based on Vent-Free Logs Installed Framing Depth: 30-1 8 Framing Height: 54-5 8 Framing Width: 51-3 8 Rating: ANSI Z21.91-2007 Style: Traditional Venting Type: Vent-Free View Style: Front View Weight: 524