Matrix-I Wood Insert by Osburn

SKU: OB02028

Starting at $4,099.00

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Proudly Made in Quebec ⚜️

The Matrix wood insert impresses with an exceptionally low average particulate emissions rate of just 2.3 g/h and a remarkable 79% efficiency. Updated to meet the latest 2020 industry standards, this redesigned unit combines robust construction with sleek, modern lines. Its refined door mechanism has been re-engineered for improved functionality, ensuring ease of use without compromising its signature style.

For certain masonry hearth installations, the addition of intermediate trim panels may be required to achieve a flawless finish.

With the Matrix, you’ll enjoy the same legendary Osburn quality—a perfect balance of performance, design, and durability.

Optional Accessories
To install the projection kit (AC01323), one of the faceplate backing plate kits (AC01322 or AC01332) must be purchased separately to properly secure the kit.

👉 Discover all the exceptional qualities of the Osburn Matrix wood insert.

Appliance performance (1)

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 : (2)75,000 BTU/h (22.0 kW)
Overall heat output rate < : (2) (3)14,200 BTU/h (4.16 kW) to 44,500 BTU/h (13.04 kW)
Average overall efficiency (dry cordwood) : (3)72 % (HHV) (4)77 % (LHV) (5)
Optimum overall efficiency : (6) (7)79 %
Optimum heat transfer efficiency : (8)76 %
Average particulate emissions rate : (9)2.3 g/h
Average CO : (10)69 g/h

(1) Values are as measured per test method, except for the recommended heating area, firebox volume, maximum burn time and maximum heat output.

(2) The maximum heat output (dry cordwood) is based on a loading density varying between 15 lb/ft³ and 20 lb/ft³ and reloading intervals ranging from 60 to 120 minutes. Other performances are based on a fuel load prescribed by the standard without any reloading between start and finish. The specified loading density varies between 7 lb/ft³ and 12 lb/ft³. The moisture content is between 19% and 25%.

(3) As measured per CSA B415.1-10 stack loss method.

(4) Higher Heating Value of the fuel.

(5) Lower Heating Value of the fuel.

(6) Performances based on a fuel load prescribed by the standard at 7 lb/ft³ and with a moisture content between 19% and 25%.

(7) Optimum overall efficiency at a specific burn rate (LHV).

(8) The optimum heat transfer efficiency is for the low burn rate (using HHV) and represents the appliance’s ability to convert the energy contained in the wood logs into energy transferred to the room in the form of heat and does not take into account the chemical losses during combustion.

(9) This appliance is officially tested and certified by an independent agency.

(10) Carbon monoxyde.

General features

Combustion technologyNon-catalytic
High-efficiency certified applianceYes, EPA 2020 approved
Maximum log length20″
Log positioningLoading over width
Chimney diameter6″
Flue outlet diameter6″
Type of chimneyLiner – ULC-S635, CAN/ULC-S640, UL1777
Minimum chimney height (feet)12′
Baffle typeC-Cast or equivalent
Approved for a mobile home installationNo
Shipping Weight491 lb (223 kg)
Door typeSingle, glass with cast iron frame
Glass typeCeramic glass
Glass surface – dimensions (Width X Height)19 5/8″ X 11 7/8″
Glass air-wash systemYes
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 distributionYes
Stainless-steel secondary-air system improving gas combustionYes
Steel thickness – body3/16″
Steel thickness – top5/16″
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 standardsBy an accredited laboratory (CAN/USA)
WarrantyLimited lifetime
Minimum clearances to combustibles*
(Data expressed in inches. 1 inch = 25.4 mm)
 CanadaUnited-States
Clearance – combustible side mantle to unit9″9″
Clearance – combustible top mantle to unit27″27″
Clearance – combustible side wall to unit16″16″
Clearance – minimum floor protection in front of the appliance18″16″
Clearance – from the top of the unit to the shelf27″ 
Clearance – from the top of the insert to the shelf 27″

* 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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Come and meet us

Rosemère

253 a Bd Curé-Labelle
Rosemère
QC J7A 2H3

Saint-Sauveur

175 Chem. Jean-Adam
Saint-Sauveur
QC J0R 1R6

Gatnineau

253 a Bd Curé-Labelle
Rosemère
QC J7A 2H3

Drummondville

253 a Bd Curé-Labelle
Rosemère
QC J7A 2H3