Up to 18K BTU's, Tempered Glass: 20" x 27 1/2", Venting: 4" x 6 5/8", Framing: 39" H x 35 1/4" W x 18" D, includes log set and barrier, variable-speed blower available as an accessory, flue pipe sold separately and does vary per house (HomeFires team will be in touch regarding specifics for each project)