Napoleon's Ascent 46 is now the largest single view fireplace in the Ascent Series and is offered as a 4" x 7" top and rear vent model. Offering a multitude of options with decorative fronts, trim kits, decorative brick panels and MIRRO-FLAME Reflective Radiant Panels, the Ascent 46 can be designed to your personal taste and match any home decor. An approved safety barrier comes standard on the Ascent 46. Note: Can be converted to liquid propane using W175-0420 conversion kit (Not Included, Sold, Separately). Includes: Ascent 46 Fireplace, Porcelain Reflective Radiant Panels, Black Zen Decorative Front and Safety screen. Features: Up to 22,000 BTU's. Ignition: Millivolt. Fuel Type: Natural Gas. Safety Screen Included. Porcelain Reflective Radiant Panels. Flex connector complete with shut off. Black Zen Decorative Front. Back-up control system ensures reliable use, even during power failures. Exclusive PHAZER log set and glowing ember bed are the most realistic in the industry. Optional media enhancement kits include Beach Fire, Shore Fire and Mineral Rocks. President's Limited Lifetime Warranty. Specifications: Glass Size: 41.68" (W) x 23.68" (H). Framing Dimensions: 46.5" (W) x 18.56" (D) x 34.86" (H). Overall Dimensions: 46" (W) x 18.31" (D) x 34.63" (H). Please Note: Must be installed by a licensed professional or warranty will be void.