The Osburn 1700 Insert turns an existing masonry fireplace into an efficient heater. It is built with high-density firebrick, a cast iron door and a quiet blower, and you can match the look with black or brushed nickel door overlays, faceplates and faceplate trims.
Specifications
Fuel Type: Wood (dry cordwood, 16" recommended)
Combustion Technology: Non-catalytic
Max Heat Output: 65,000 BTU/h (19 kW)
Efficiency: 70% average (HHV), 78% optimum
Max Burn Time: 7 h
Firebox Volume: 1.86 cu ft
Max Log Length: 18"
Overall Dimensions: 27 1/8" W Ă— 21 1/4" H Ă— 22 3/8" D
Minimum Fireplace Opening: 27 1/2" W Ă— 21 1/2" H Ă— 12 7/8" D
Weight: 361 lb (164 kg) shipping
Door Type: Cast iron
Flue Diameter: 6"
Blower: Included
Emissions: 2.4 g/h
EPA Status: EPA 2020 certified
Clearances
Minimum clearances to combustibles from the installation manual (Canadian installation in a masonry fireplace). Always confirm with the manual and local code before installing.
Side wall: 16"
Side trim / facing: 9"
Top trim / facing: 27"
Mantel: 27" above the insert
Hearth extension (front): 18" from door opening (22" with R-value 1.00 if the hearth is raised 4" or less)
