The BRT4000 B-Vent Fireplaces feature multidimensional refractory log arrangement and deep glowing ember bed. An aluminized tube dual burner provides real wood-fire ambiance with 40,000 BTU. The BRT4000 ships smooth faced and include hidden screen pockets, easy access flue damper with safety shut-off switch, and white refractory. Includes White Herringbone Panel, hidden screen pockets, easy access flue damper and safety shut-off switch. Features BTUs 45,000. Fuel Type Natural Gas. Ignition Electronic. Radiant smooth faced. White herringbone refractory panel interior. Screens retract into hidden screen pockets. Hidden gas controls with damper safety switch. Durable textured powder coat finish. Optional outside air kit for increased performance. Optional remote controls available for all models. Dual access pre-wired electrical J-box. 20 year limited warranty. Specifications Overall Dimensions 49 W x 23 D x 41 H .