The Osburn Matrix must be installed in a masonry fireplace and combines timeless cast iron design with modern efficiency. With low emissions (2.3 g/h) and EPA 2020 approval, it offers cleaner combustion and reliable performance. Its large glass viewing area, sturdy build, and efficient blower make it both stylish and functional, while refractory brick lining ensures better heat distribution. Designed for comfort, safety, and durability, the Matrix is a smart upgrade from a traditional fireplace.

Key Specs:

• Heating area: 500 – 2,100 ft²
• Firebox volume: 2.4 ft³ (1.95 ft³ EPA tested)
• Max burn time: 8 hours
• Max heat output: 75,000 BTU/h
• Efficiency: 72% (HHV), up to 79% optimal
• Emissions: 2.3 g/h
• Max log length: 20" (loading over width)
• Chimney: 6" diameter, 12' minimum height
• Blower: 90 CFM (included)
• Glass dimensions: 19 ⅝" × 11 ⅞"
• Dimensions (W × H × D): 36 ⅛" × 25 ⅛" × 23 ⅛"
• Firebox (W × H × D): 21" × 11 ⅞" × 16 ¾"
• Fireplace opening (min): 28 ⅞" W × 23 ⅜" H × 19 ⅝" D
• Lining: Refractory bricks, stainless-steel secondary-air system
• Door: Single, cast iron with ceramic glass
• Warranty: Limited lifetime