The Osburn 1900 must be installed in a masonry fireplace. Compact yet elegant, the Matrix 1900 combines refined design with practical performance. Its cast-iron faceplate features decorative columns and a patterned louver, while a large ceramic glass door offers a panoramic view of the fire. With tapered sides for easy installation in smaller hearths, a deep firebox to reduce cleaning, and a quiet 90 CFM blower, this unit is ideal for efficient, cozy heating in tighter spaces.
Key Specs:
- Heating area: 250 – 1,200 ft²
- Firebox volume: 1.1 ft³ (1.03 ft³ EPA tested)
- Max burn time: 7 hours
- Max heat output: 45,000 BTU/h
- Efficiency: 75% (HHV), up to 82% optimal
- Emissions: 1.5 g/h
- Max log length: 17″ (loading over width)
- Chimney: 6″ diameter, 12′ minimum height
- Blower: 90 CFM (included)
- Glass dimensions: 18″ × 8 ⅛”
- Dimensions (W × H × D): 36″ × 23 ⅞” × 21″
- Firebox (W × H × D): 16 ¾” × 8 ⅞” × 12 ⅜”
- Fireplace opening (min): 25″ W × 19″ H × 15 ½” D
- Lining: Molded refractory bricks, stainless-steel secondary-air system
- Door: Single, cast iron with ceramic glass
- Warranty: Limited lifetime
