The Matrix wood insert will seduce you with an average particle emission rate as 2.3 g/h and an optimal efficiency of 79%. The latest modifications made to this box are well in tune with the industry standards required for 2020. Although it retains a unique style that is both massive and sleek, we have reviewed the door mechanism to make it more functional. Adding a set of intermediate trim panels may be required to complete your masonry hearth. Always the same legendary Osburn quality.
See the video below to see the Osburn Matrix Wood Insert in action:
| Combustion technology | Non-catalytic |
| High-efficiency certified appliance | Yes, EPA 2020 approved |
| Maximum log length | 20" |
| Log positioning | Loading over width |
| Chimney diameter | 6" |
| Flue outlet diameter | 6" |
| Type of chimney | Liner - ULC-S635, CAN/ULC-S640, UL1777 |
| Minimum chimney height (feet) | 12' |
| Baffle type | C-Cast or equivalent |
| Approved for a mobile home installation | No |
| Shipping Weight | 491 lb (223 kg) |
| Door type | Single, glass with cast iron frame |
| Glass type | Ceramic glass |
| Glass surface – dimensions (Width X Height) | 19 5/8" X 11 7/8" |
| Glass air-wash system | Yes |
| Premium quality blower included (CFM) | 90 |
| Overall dimension (Height) | 25 1/8" |
| Overall dimension (Width) | 36 1/8" |
| Overall dimension (Depth) | 23 1/8" |
| Door opening – dimension (Height) | 8 3/4" |
| Door opening - dimension (Width) | 17 1/2" |
| Firebox – dimension (Height) | 11 7/8" |
| Firebox – dimension (Width) | 21" |
| Firebox – dimension (Depth) | 16 3/4" |
| Firebox lined with refractory bricks for better heat distribution | Yes |
| Stainless-steel secondary-air system improving gas combustion | Yes |
| Steel thickness – body | 3/16" |
| Steel thickness – top | 5/16" |
| Fireplace opening – minimum (Height) | 23 3/8" |
| Fireplace opening – minimum (Width) | 28 7/8" |
| Fireplace opening – minimum (Depth) | 19 5/8" |
| USA standard (emissions) | EPA / ASTM WK47329 |
| Canadian Standard (emissions) | CSA B415.1-10 |
| USA standard (safety) | UL 1482, UL 737 |
| Canadian standard (safety) | ULC S628 |
| Tested and listed as per applicable standards | By an accredited laboratory (CAN/USA) |
| Warranty | Limited lifetime |
| Minimum clearances to combustibles* (Data expressed in inches. 1 inch = 25.4 mm) |
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| Canada | United-States | |
| Clearance – combustible side mantle to unit | 9" | 9" |
| Clearance – combustible top mantle to unit | 27" | 27" |
| Clearance – combustible side wall to unit | 16" | 16" |
| Clearance – minimum floor protection in front of the appliance | 18" | 16" |
| Clearance - from the top of the unit to the shelf | 27" | |
| Clearance – from the top of the insert to the shelf | 27" | |
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* The information given on the certification label affixed to the appliance always overrides the information published in any other media (owner's manual, catalogues, flyers, magazines and/or web sites). |
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| Fuel type : | Dry cordwood (16" recommended) | |
| Recommended heating area-ft² : | 500 - 2,100 | |
| Overall firebox volume-ft³ : | 2.4 | |
| EPA loading volume-ft³ : | 1.95 | |
| Maximum burn time : | 8 h | |
| Maximum heat output-dry cordwood : | 75,000 BTU/h (22.0 kW) | |
| Overall heat output rate < : | 14,200 BTU/h (4.16 kW) to 44,500 BTU/h (13.04 kW) | |
| Average overall efficiency (dry cordwood) : | 72 % (HHV) | 77 % (LHV) |
| Optimum overall efficiency : | 79 % | |
| Optimum heat transfer efficiency : | 76 % | |
| Average particulate emissions rate : | 2.3 g/h | |
| Average CO : | 69 g/h | |
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