Osburn Matrix-I Wood-Burning Fireplace Insert | OB02028

Osburn Matrix-I Wood-Burning Fireplace Insert – OB02028 Modern High-Efficiency Wood Heat for Masonry Fireplaces The Osburn Matrix-I wood-burning fireplace insert delivers powerful EPA 2020 certified performance with sleek contemporary styling and up to 79% optimal efficiency. Key Features EPA 2020 Certified Wood-Burning Fireplace Insert Heats 500 – 2,100 sq. ft. 2.3 g/h Low Emissions Large 36-1/8" x 25-1/8" Faceplate for Full Masonry Coverage 79% Optimal Overall Efficiency 75,000 BTU Maximum Output Premium 90 CFM Blower Included Heavy-Duty Steel Construction Limited Lifetime Warranty Discover the Additional Qualities of the Osburn Matrix Wood Insert The Matrix wood insert will seduce you with an average particulate emission rate of 2.3 g/h and an optimal efficiency of 79%. The latest modifications made to this firebox align with strict 2020 industry standards. Although it retains a bold, massive yet sleek style, the door mechanism has been redesigned for improved functionality and durability. Always the same legendary Osburn quality. Important Installation Notice: Adding a set of intermediate trim panels may be required to complete your masonry hearth installation. Projection Kit Notice: To install the optional projection kit AC01323, you must also purchase one of the following faceplate backing plate kits separately: AC01322 AC01332 These backing plates are required to properly secure the projection kit. Product Features EPA 2020 Certified Clean Burning Performance This EPA-approved wood fireplace insert meets 2020 cordwood standards with emissions of only 2.3 grams per hour, delivering environmentally responsible heating and improved indoor air quality. Powerful Heating Capacity Up to 2,100 Sq. Ft. Designed for zone heating, the Matrix-I efficiently heats medium to large living areas, making it ideal for upgrading an existing masonry fireplace. High Efficiency Non-Catalytic Combustion Advanced non-catalytic combustion technology maximizes burn efficiency while minimizing creosote buildup. Achieve: 72% HHV efficiency 77% LHV efficiency 79% optimal efficiency Heavy-Duty Steel Firebox Construction Built with: 3/16" steel body 5/16" reinforced steel top Refractory brick lining C-Cast baffle system This durable construction ensures long-term reliability and superior heat retention. Large Viewing Area with Air-Wash System The ceramic glass viewing window (19 5/8" W x 11 7/8" H) provides a beautiful view of the fire, while the integrated air-wash system helps keep the glass cleaner. Included Premium 90 CFM Blower The factory-installed blower improves heat circulation and overall performance, increasing usable heat output into your living space. Optimized for 16" Firewood Designed for east-west loading with recommended 16" logs (up to 20" maximum), improving combustion consistency and ease of use. ⚠️ Safety Warning Warning: Wood-burning inserts must only be installed inside an existing masonry fireplace and never in a wooden or combustible structure. Always consult local building codes and a qualified professional installer. Product Specifications Appliance Performance Specification Value Fuel Type Dry cordwood (16" recommended) Recommended Heating Area 500 – 2,100 sq. ft. Overall Firebox Volume 2.4 ft³ EPA Loading Volume 1.95 ft³ Maximum Burn Time Up to 8 hours* Maximum Heat Output 75,000 BTU/h (22.0 kW) Heat Output Range 14,200 – 44,500 BTU/h Average Overall Efficiency 72% (HHV) / 77% (LHV) Optimal Overall Efficiency 79% Optimal Heat Transfer Efficiency 76% Average Particulate Emissions 2.3 g/h Average CO 69 g/h   Construction & Design Specification Value Combustion Technology Non-Catalytic Maximum Log Length 20" Log Orientation East-West (Loading Over Width) Firebox Lining Refractory Brick Baffle Type C-Cast or Equivalent Secondary Air System Stainless Steel Steel Thickness (Body) 3/16" Steel Thickness (Top) 5/16" Door Type Single, Glass with Cast Iron Frame Glass Type Ceramic Glass Glass Dimensions 19 5/8" x 11 7/8" Blower Included – 90 CFM Shipping Weight 491 lbs (223 kg) Warranty Limited Lifetime Dimensions Dimension Measurement Overall Height 25 1/8" Overall Width 36 1/8" Overall Depth 23 1/8" Door Opening (H x W) 8 3/4" x 17 1/2" Firebox Dimensions (H x W x D) 11 7/8" x 21" x 16 3/4"   Standard Faceplate Dimensions Faceplate Dimension Measurement Faceplate Width 36 1/8" Faceplate Height 25 1/8"   Minimum Fireplace Opening Requirements Requirement Measurement Height 23 3/8" Width 28 7/8" Depth 19 5/8"   Venting Requirements Specification Value Chimney Diameter 6" Flue Outlet Diameter 6" Approved Chimney Types ULC-S635, CAN/ULC-S640, UL1777 Minimum Chimney Height 12 ft   Certifications & Standards Category Standard USA Emissions EPA / ASTM WK47329 Canadian Emissions CSA B415.1-10 USA Safety UL 1482, UL 737 Canadian Safety ULC S628 Listing Tested by Accredited Laboratory (CAN/USA)   Minimum Clearances to Combustibles Clearance Canada USA Side Mantel to Unit 9" 9" Top Mantel to Unit 27" 27" Side Wall to Unit 16" 16" Floor Protection (Front) 18" 16" Top of Insert to Shelf 27" 27"   Warranty Warranty Coverage – Osburn Wood Stoves & Inserts Osburn wood-burning appliances are backed by a limited lifetime manufacturer’s warranty that covers specific components for varying durations. Coverage applies to the original purchaser and is subject to proper installation and use per the owner’s manual. Warranty Coverage: Component / Description Parts Coverage Labor Coverage Combustion chamber (welds only) and cast-iron door frame Lifetime* 5 years Ceramic glass**, plating (manufacturing defect**), convector air-mate Lifetime* N/A Surrounds, heat shields, ash drawer, steel legs, pedestal, trims (aluminum extrusions), vermiculite, C-Cast or equivalent baffle**, secondary air tubes**, removable stainless steel combustion chamber, deflectors, and supports 7 years* N/A Handle assembly, glass retainers, and air control mechanism 5 years 3 years Removable carbon steel combustion chamber components 5 years N/A Standard and optional blower, heat sensors, switches, rheostat, wiring, and electronics 2 years 1 year Paint (peeling**), gaskets, insulation, ceramic fiber blankets, refractory bricks (fireplace only*) and other options 1 year N/A All replacement parts supplied under warranty 90 days N/A Important Warranty Notes Lifetime coverage is limited to one replacement. Photo documentation may be required to validate claims. Warranty applies to manufacturing defects only. Damage caused by improper installation, misuse, abuse, over-firing, or failure to follow installation instructions is not covered. Labor coverage applies only where explicitly stated. Warranty terms are subject to the manufacturer’s full warranty policy. What This Means for Homeowners Osburn’s warranty reflects long-term confidence in the structural components that matter most—while clearly defining wear items and electronics that naturally experience use-related aging. For full warranty eligibility: Installation must comply with the owner’s manual Appliance must be operated using approved fuels Routine maintenance must be performed as recommended About the Manufacturer Who Is Osburn? Osburn is a Canadian manufacturer specializing in high-efficiency wood stoves and zero-clearance wood fireplaces designed for real-world home heating. The brand is widely recognized in North America for producing EPA-certified wood-burning appliances that combine strong heat output, clean combustion, and durable construction. Founded in Québec, Canada, Osburn has built its reputation around performance-driven wood heating, offering products capable of heating entire homes while meeting modern emissions and safety standards. What Is Osburn Known For? Osburn is best known for: Wood stoves & inserts with high BTU output EPA 2020–certified wood-burning technology Non-catalytic combustion systems that simplify operation Large fireboxes and extended burn times Canadian manufacturing and engineering standards Osburn stoves & inserts are designed to deliver both ambiance and functional heat, making them suitable for homeowners seeking a real wood fire that also contributes meaningful warmth. Where Are Osburn Wood Stoves Made? Osburn fireplaces and wood stoves are designed and manufactured in Canada. The brand operates under Stove Builder International (SBI), one of North America’s largest and most established hearth appliance manufacturers. This manufacturing structure allows Osburn to maintain: Consistent quality control In-house testing and certification Long-term parts availability Proven reliability across product lines Are Osburn Products EPA Certified? Yes. Osburn fireplaces and stoves meet EPA 2020 emissions standards, making them compliant for installation in the United States. These certifications ensure: Lower particulate emissions Improved fuel efficiency Cleaner-burning fires compared to older wood fireplaces Many Osburn models are also certified to UL and ULC safety standards for use in both the U.S. and Canada. Can Osburn Fireplaces Be Used for Heating a Home? Yes. Many Osburn wood stoves can heat 750 to over 2,000 square feet, depending on the model, home layout, and installation. While often installed for ambiance, Osburn stoves are frequently used as: Primary heat sources in open-concept homes Supplemental heating systems to reduce reliance on fossil fuels Emergency heat during power outages Osburn’s Design Philosophy: Beyond Fire Osburn describes its approach as “Beyond Fire”—a focus on preserving the authenticity of a real wood fire while reimagining it for modern homes. This philosophy emphasizes: Efficient combustion Clean-burning technology Durable materials Contemporary styling that fits today’s interiors The result is a fireplace that delivers more than just appearance—it delivers dependable heat. Why Homeowners Choose Osburn Homeowners choose Osburn fireplaces because they offer: Canadian-made quality High heat output with clean emissions EPA 2020 compliance Zero-clearance installation flexibility Large glass viewing areas Long-term manufacturer support