The Vail 32 Premium Vent-Free Fireplaces now feature hem-bent seams that provide a better seal while eliminating dozens of screws and fasteners. The result is a lighter, more rigid box that's easier to install. At 99.9 percent efficient, the Vent-Free Slope Glaze Burner delivers more heat for your energy dollars – 36,000 Btu for the Vail 32. Ceramic glazed pellets in the burner tumble and swirl the gas to produce a natural flickering flame. The matte black arched screen front perfectly frames the logs and brick liner to create an exceptionally beautiful fireplace. All Vail fireplaces come with matte black slat louvers and hood.Remote Ready Slope Glaze Burner System Matte Black Slat Louvers and HoodBlower: Optional Brick Liner: Optional BTUs: 36000 Efficiency: 99.9% Facing: Circulating Fuel Type: Liquid Propane, Natural Gas Piping Type: Vent Free Rough Framing: 39-1 2W x 38-1 4H x 17-7 8D Valve Style: Remote Ready - Remote Excluded Venting Style: Vent-Free Viewing Area: 36W x 24-7 8HLog set required to complete unit.