EPA-certified airtight fireplace insert converts a masonry fireplace into a functional, high-efficient heat source. Features an adjustable-speed blower, 3/16in. reinforced plate steel, cast iron feed door with ceramic glass window and a hearth surround with pewter trim. Holds up to 18 lbs. of wood. Safety tested to UL 14821998. BTU Output: 69, 600 (cord wood); 27,257 (EPA constant), Heating Capability (sq. ft.): 1800, Blower Included: Yes, Blower (CFM): 125, Blower Power Supply (Volts, Amps): 110, Full Load Run Time (Hours): 8, Fuel Type: Wood, Igniter: No, Thermostat Included: No, Door Opening W x H (in.): 19 x 8.5, Firebox Size W x D (in.): 20.5 x 12, Flue Collar Size (in.): 6, Max. Log Size Accepted (L in.): 18, Stove Pipe Included: No, Clearance from Side Wall (in.): 9.5, EPA Exempt: No, Dimensions W x D x H (in.): 23.5 x 20 x 21.5