Empire Loft medium direct vent gas fireplace insert - Liquid propane. The unit uses a 27,000 BTU Slope Glaze Flair Burner that has variable flame height and realistic black porcelain liner. A large heat-resistant ceramic glass panel provides a beautiful viewing area and a built-in automatic Blower works quietly and effectively to circulate heated air for good heating capability. Includes: Black Porcelain Liner, Burner, and Blower. Features: Medium direct vent gas fireplace insert. Fuel type: Liquid propane. Intermittent Pilot control. 27,000 BTU Slope Glaze Flair Burner features variable flame height. Realistic Black porcelain liner. Built-in automatic Blower quietly and effectively circulates heat. Convenient slide-on vent plate. Minimum Fireplace Opening Requirements:. Height - 21.37" . Front Width - 30.5" . Rear Width - 19" . Depth - 14.25" . Dimensions: 31" (W) x 14.25" (D) x 22.75" (H). Required: Must Choose Following Add-on's to Complete This Unit (Not Included; Order Separately): Decorative Metal Frame:. . Decorative Metal Frame for Insert, 3-Sided, 1-Piece (DS25661BL). Surround with Barrier Screen:. Decorative Metal Surround with Barrier Screen for Insert, 4-Sided (SQ3362BL) (SQ3362BLSS). Custom Surround 3-Sided, Black (CS3SIDED). Custom Surround 4-Sided, Black (CS4SIDED) Decorative Front with Barrier Screen:. Decorative Front with Barrier Screen, Lancaster (DVFQ33HBL) (DVFQ33HHP) (DVFQ33HSS). Decorative Front with Barrier Screen, Eclipse (DVFQ33RBL) (DVFQ33RHP) (DVFQ33RSS). Shows surround (not included; order separately)