Osburn Matrix Wood Stove
At a glance
- Type: Wood stove, EPA 2020 certified
- Heats: 500–2,100 sq ft
- Heat output: 75,000 BTU/hr
- Log length: 16 in east-west
- Efficiency: 72% HHV / 77% LHV
- Burn time: Up to 8 hours
- Chimney: 6 in
Description
The Osburn Matrix Wood Stove is an EPA 2020 certified wood stove for 500 to 2,100 sq ft. It burns up to 8 hours on a load and takes a 6-inch chimney.
Who it's for
Right buyer. Owners of moderately to well-insulated homes between roughly 1,000 and 1,800 sq ft who want a freestanding wood stove with European-inspired pedestal styling, soapstone accent options, and a heating capability that earns its place as primary or substantial supplemental heat in the room where it lives.
Compared to the Inspire 2000 (which sells the same 130 CFM blower kit separately as an add-on), the Matrix is the more complete-out-of-the-box configuration. Buyers who want at-order configurability on the visible side and top panels.
How it performs
The 75,000 BTU/hr maximum is a peak rating, transient, achieved on dry cordwood at loading density of 15–20 lb/ft³ and reload intervals of 60–120 minutes. The figure that matters for daily life is the sustained output across a full burn cycle, which lands in the 14,200–44,500 BTU/hr band per the CSA B415.1-10 stack-loss method.
Good to know
- Two buyer-configurable choices at order — side panels and top panel.
- Blower is essential to the design.
- Tight door opening height. 8 3/4" door opening height is on the lower end for a 2.4 ft³ firebox.
Specifications
Dimensions
Dimensions from the specification sheet
| Measurement | Value |
|---|---|
| Overall height | 36‑7/8" |
| Overall width | 27‑1/8" |
| Overall depth | 25" |
| Shipping weight | 506 shipping lb |
| Glass, W x H | 19‑5/8 x 11‑7/8 |
| Door opening | 17‑1/2 W x 8‑3/4 H |
| Firebox, W x H x D | 21 W x 11‑7/8 H x 16‑1/2 D |
Dimensions
| Measurement | Value |
|---|---|
| Firebox volume | 2.4 ft³ overall / 1.95 ft³ EPA |
| Glass | 19 5/8" x 11 7/8", ceramic, single door |
| Minimum chimney height | 12 ft |
| Door opening | 17 1/2" W x 8 3/4" H |
| Overall dimensions | 27 1/8" W x 25" D x 36 7/8" H |
| Shipping weight | 506 lb |
Where it can go
The Matrix is designed for installation in a permitted residential space — a living room, family room, basement, finished workshop, manufactured home, or mobile home with adequate floor support and a 6-inch Class A insulated chimney path to the exterior. Approved for both alcove and mobile-home installations in the US and Canada per the manufacturer listing — uncommon dual approval that opens installation locations many other freestanding wood stoves can't serve.
Clearances to combustibles
Floor protection
A non-combustible floor protector is required under and around the appliance unless the existing floor is already non-combustible. In Canada, the floor protector must extend at least 18 inches in front of the door opening and at least 8 inches on each side of the appliance. In the US, the floor protector must extend at least 16 inches in front of the door opening and at least 8 inches on each side. The manufacturer offers pre-sized options including modular floor protection systems, tempered glass hearth pads in clear or tinted finishes, and corner-configured hearth pad systems for buyers wanting a coordinated finished look.
Clearances
United States figures, in inches. The rating plate on the appliance overrides any published number; the installer confirms on site.
| Clearance | Minimum |
|---|---|
| Back wall, single-wall pipe | 11" |
| Back wall, double-wall pipe | 6" |
| Corner, single-wall pipe | 10" |
| Corner, double-wall pipe | 7" |
| Side wall | 16" |
| Ceiling, from the floor the stove sits on | 84" |
| Floor protection in front | 16" |
Notes from the manual
SW = single-wall stove pipe (less expensive but requires more clearance). DW = double-wall stove pipe (more expensive but allows closer installation). Choosing double-wall pipe meaningfully reduces back-wall clearance — from 14 1/2" to 6" in Canada, 11" to 6" in the US. The certification label on the unit is the binding clearance for any installation and always overrides clearance figures published in any other media. Confirm the binding clearance figures with your installer before purchase.
Documents
- Wood stove manual | Safety notifications & general information (PDF - 2.9 MB)
- Osburn Matrix wood stove install & owner's manual (PDF - 7.2 MB)
- Osburn Matrix Dimensions (PDF - 0.5 MB)
- Maximum recommended heating area by climate zone (PDF)
- Osburn wood products brochure, USA edition, with dimension drawings (PDF)
- Osburn limited lifetime warranty
- EPA test reports
- Replacement parts
Details
| Appliance type | Freestanding wood stove |
|---|---|
| Combustion technology | Non-catalytic |
| Firebox volume | 2.4 ft³ overall / 1.95 ft³ EPA |
| Maximum heat output | 75,000 BTU/hr |
| Tested output range | 14,200–44,500 BTU/hr |
| Heating range | 500–2,100 sq ft |
| Average efficiency | 72% HHV / 77% LHV |
| Particulate emissions | Below EPA 2.5 g/hr limit |
| Average CO emissions | 69 g/hr |
| Maximum burn time | Up to 8 hours |
| Recommended log length | 16 in east-west |
| Maximum log length | 20 in east-west |
| Construction | Heavy-gauge steel body, pedestal mount |
| Side panels | Configured at order |
| Top panel | Configured at order |
| Baffle | C-Cast or equivalent |
| Glass | 19 5/8" x 11 7/8", ceramic, single door |
| Blower | 130 CFM, included |
| Flue connection | 6 in |
| Minimum chimney height | 12 ft |
| Combustion chamber | 21" W x 16 1/2" D x 11 7/8" H |
| Door opening | 17 1/2" W x 8 3/4" H |
| Overall dimensions | 27 1/8" W x 25" D x 36 7/8" H |
| Shipping weight | 506 lb |
| Mobile home approved | Yes (US and Canada) |
| Alcove approved | Yes |
| Standards | UL 1482 / UL 737, ULC-S627, EPA / CSA B415.1‑10 |
| Country of origin | Made in Canada |
| Model | OB02032 |
| Manufacturer | Osburn, by Stove Builder International (SBI), Quebec, Canada |
| Certification | UL 1482, UL 737, ULC S627; EPA 2020; CSA B415.1‑10 |
| Warranty | Limited lifetime |
| Specification source | SBI specification table as published by Osburn dealers (ruralenergy.com, firepitsurplus.com), 2026 |
Warranty
A one-time replacement limit applies to all parts with lifetime coverage. Warranty is void if the unit is used to burn anything other than seasoned cordwood, or if it is not operated according to the owner's manual. Damage caused by misuse, improper installation, lack of maintenance, overfiring, downdrafts, venting problems, or under-estimated heating area is not covered. Improper installation by anyone other than an authorized qualified technician voids the warranty.
Warranty claims are made through your Osburn dealer and remain subject to SBI/Osburn inspection, approval, and the current written warranty. Kaminos is the retailer for this stove and supports buyers through purchase; final warranty approval rests with SBI as the manufacturer. SBI's parts network is well-stocked — replacement bricks, baffle, secondary tubes, glass, gaskets, blower, heat sensor, panels, and venting components are openly available at fair prices through multiple parts vendors.
Osburn may require photos or returned parts to support a claim; repair work covered by warranty requires prior manufacturer approval.
Coverage details can change by component and warranty revision; the current Osburn warranty controls.
Heat
From the specification sheet
| Spec | Value |
|---|---|
| Heating area | 500 to 2,100 sq ft |
| Maximum heat output | 75,000 BTU/h |
| Heat output range | 14,800 to 28,600 BTU/h |
| Efficiency | 69% HHV, 74% LHV average; 77% optimum |
| Burn time | 8 h |
| Firebox volume | 2.4 cu ft (EPA loading 2.02) |
| Log length | 20 in (16 in recommended) |
| Emissions | 1.54 g/h |
| Blower | 130 CFM included |
| Spec | Value | What it means |
|---|---|---|
| Combustion technology | Non-catalytic | Stainless-steel secondary-air tubes reignite smoke gases. No catalyst to replace; simpler operation than a cat appliance but shorter low-and-slow burn times. |
| Maximum heat output | 75,000 BTU/hr | Peak output on dry cordwood, transient. Based on loading density of 15–20 lb/ft³ and reloading intervals of 60–120 minutes. Sustained output across a burn cycle is substantially lower. |
| Heating range | 500–2,100 sq ft | Manufacturer's stated range. Real-world comfort sizing for primary heat is roughly 1,000–1,800 sq ft in moderate climates and lower in cold climates or older homes — depends on insulation, layout, climate, ceiling height, fuel quality, and installation. |
| Average efficiency | 72% HHV / 77% LHV | 79% LHV optimum efficiency at low burn rate; 76% HHV optimum heat-transfer efficiency. Among the higher efficiency figures in the Osburn freestanding wood-stove lineup. HHV is the federal standard. |
| Particulate emissions | Below EPA 2.5 g/hr limit | EPA 2020 cordwood certified by an independent accredited laboratory. Tested at well below the 2.5 g/hr particulate limit for cordwood appliances. Specific tested figure varies between published manufacturer materials — confirm the current figure with the dealer or manufacturer if it matters to your jurisdiction's requirements. |
| Average CO emissions | 69 g/hr | Average carbon monoxide emissions per CSA B415.1‑10 stack-loss method. In line with the Osburn freestanding wood-stove lineup at comparable output. |
| Maximum burn time | Up to 8 hours | Manufacturer maximum from a packed load of dry hardwood with the air shut down hard. Useful heat through a burn cycle is realistically 6–7 hours. |
| Recommended log length | 16 in east-west | Per manufacturer spec. Most firewood suppliers cut to this length. |
| Maximum log length | 20 in east-west | Longer logs go east-west across the 21-inch firebox width. Loading is over width (east-west), not north-south. |
| Combustion chamber | 21" W x 16 1/2" D x 11 7/8" H | Inside firebox dimensions per manufacturer spec. Loading is over width (east-west) per the manufacturer's specification. |
Choices and prices
Options
The unit price is Osburn's 2026 list price for the wood stove alone. Options sold on this page add to it; those marked on request we add to your order by hand.
Faceplate and trim
| Faceplate and trim | Part | Price |
|---|---|---|
| BLACK SIDE PANELS KIT | OA10700 | $390 |
| SOAPSTONE SIDE PANELS KIT | OA10701 | $990 |
| SOAPSTONE PANEL TOP (2 UNITS) | OA10703 | $440 |
| BLACK STEEL PANEL TOP | OA10704 | $160 |
Fresh air
| Fresh air | Part | Price |
|---|---|---|
| 5"Ø AIR INTAKE TERMINATION WITH CLAMPS (on request) | AC01297 | $66 |
| 5''Ø FRESH AIR INTAKE REGISTER WITH AIRTIGHT DAMPER (on request) | AC01349 | $285 |
| 5"Ø X 4' INSULATED FLEX PIPE FOR FRESH AIR INTAKE (on request) | AC02090 | $50 |
Other options
| Other options | Part | Price |
|---|---|---|
| RIGID FIRESCREEN (on request) | AC01315 | $200 |
| TEMPERED GLASS HEARTH PAD 10 mm - 54" X 46 3/4" (on request) | AC02703 | $869 |
| MODULAR FLOOR PROTECTION SYSTEM 54" X 46 3/4" (on request) | AC02711 | $545 |
| TINTED TEMPERED GLASS HEARTH PAD 10 mm - 54" X 46 3/4" (on request) | AC02758 | $439 |
| MODULAR HEARTH PAD SYSTEM 60" - CORNER (on request) | AC02787 | $775 |
What arrives
- Matrix freestanding wood stove with 3/16" steel body, 5/16" steel top, welded steel firebox, refractory brick lining, stainless-steel secondary-air tube assembly, and cast-iron-framed single ceramic glass viewing door with reversible swing
- Configured at order with required side panel selection — Black Steel (default) or Soapstone (premium upgrade)
- Configured at order with required top panel selection — Black Steel (default) or Soapstone (upgrade)
- 130 CFM blower with heat sensor for automatic cycling
- C-Cast or equivalent baffle
- Ash pan with removable cover
- Owner's installation and operation manual and product documentation
Sold separately
- Code-compliant 6-inch Class A insulated chimney system — listed factory-built chimney complying with UL 103 HT (USA) or ULC S629 (Canada); required venting components are sold separately
- Stove pipe connector between the stove and chimney — single-wall or double-wall (double-wall recommended for closer-to-wall installations per the clearance table)
- Hearth pad or floor protector sized to manual specifications — manufacturer options include Modular Floor Protection System 54" × 46 3/4" (SBI AC02711), Modular Hearth Pad System 60" corner (SBI AC02787), Tempered Glass Hearth Pad 54" × 46 3/4" (SBI AC02703), Tinted Tempered Glass Hearth Pad 54" × 46 3/4" (SBI AC02758)
- Optional Rigid Firescreen (SBI AC01315) — for occasional door-open viewing where local code permits; never leave the stove unattended
- Optional 5" Fresh Air Intake Register with Airtight Damper (SBI AC01349), 5" × 4' Insulated Flex Pipe for fresh air intake (SBI AC02090), and 5" Air Intake Termination with Clamps (SBI AC01297) — required for mobile-home installations, recommended for tight homes
- Optional Certified Modular Heat Shield System 53" × 58 1/2" (SBI AC02762) and Heat Shield Extension (SBI AC02713) — for installations requiring additional wall shielding
- Digital moisture reader and probe thermometer — strongly recommended; not optional in practice
- Glass cleaner (SBI AC07825), dry cleaning pad (SBI AC07824), gloves (SBI AC07820 or AC07822), fire starters — consumables for normal operation and maintenance
- Installation by an authorized qualified technician (WETT, NFI, or CSIA certified) — required for warranty coverage and often required by code, permit, or insurance
Installation
Chimney requirements from the specification sheet
| Requirement | Value |
|---|---|
| Flue | 6 in |
| Chimney type | CAN/ULC S629, UL 103 HT |
| Minimum chimney height | 12 ft |
| Alcove installation | yes |
| Mobile home installation | yes, with fresh air intake |
A 6-inch chimney flue system is required. New factory-built chimney systems must comply with UL 103 HT 2100 °F (USA) or ULC S629 (Canada) and be suitable for solid fuel. The minimum chimney height is 12 feet measured from the stove to the chimney cap outside the house; 15 feet or higher is ideal for optimal draft. The chimney must extend at least 3 feet above the highest point of contact with the roof and at least 2 feet above any roof line or obstacle within 10 feet horizontally.
An 8-inch chimney is not recommended — EPA/CSA B415.1-10 certified heaters function best on a 6-inch chimney. If your existing chimney is 8 inches, install a 6-inch stainless steel liner inside it. Masonry chimneys require a stainless steel liner sized to match the 6-inch flue outlet.
Outside air
A fresh-air intake is required for mobile-home installations and strongly recommended for tight new-construction homes with mechanical ventilation, for homes with powerful range hoods or other mechanical exhaust appliances, and where local code requires it. A 5-inch insulated flex pipe and 5-inch fresh air intake register with airtight damper are sold separately for buyers configuring outside-air installations. A smoke detector and carbon monoxide detector are required in the room where the stove is installed.
Codes and approvals
Code compliance for any specific installation is determined by the local Authority Having Jurisdiction. Manufacturer listings cover what the stove is approved for; the AHJ approves what is permitted at your address. A WETT (Canada), NFI, or CSIA (USA) certified installer is strongly recommended and frequently required by code, permit, or insurance. EPA-certified wood heaters are mandatory in the United States, British Columbia, Ontario, Quebec, Nova Scotia, New Brunswick, and Newfoundland — confirm local requirements before purchasing, particularly in EPA non-attainment counties and in HOA jurisdictions where new wood-burning installs may be restricted.
California Proposition 65
This product can expose you to chemicals including carbon monoxide, which is known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to www.P65warnings.ca.gov.
Planning the install
- Check with your building department and insurer: wood appliances need a permit in most places and an inspection after installation.
- The chimney is the other half of the system. It is sold separately and quoted from your installer's plan.
- Clearances and floor protection come from the manual and depend on the pipe and shields you choose. Send us your plan and we will check it.
- Burn seasoned wood below 20 percent moisture. Wet wood is the cause of most complaints about any wood stove.
- Special-order goods ship by freight.
Questions
How does it compare with the other Osburn models?
- Osburn Inspire 2000 Closest contemporary sibling in the Osburn freestanding wood-stove line — same 2.4 ft³ firebox, same 75,000 BTU/hr maximum cordwood output, same 14,200–44,500 BTU/hr tested band, same EPA 2020 cordwood certification, same 8-hour max burn, same 20-inch log capacity, same 6-inch chimney, same heavy-gauge construction (3/16" body, 5/16" top). Differences: Inspire 2000 has three base options (Minimalist / Black Steel / Soapstone) vs Matrix's two panel choices (side and top); Inspire 2000 sells the blower kit separately (Matrix includes 130 CFM blower as standard); Inspire 2000 has wider but shorter glass (20 1/4" × 9 1/2") vs Matrix's taller but narrower glass (19 5/8" × 11 7/8"); Inspire 2000 has the optional NightFlame glass upgrade option, Matrix doesn't; Inspire 2000 lower starting price than the Matrix. Choose the Inspire 2000 for three base options at order, NightFlame glass option, and lower starting price; choose the Matrix for the included blower, soapstone side and top panel options, and the pedestal-with-panels styling.
- Osburn 2000 Wood Stove Traditional sibling in the Osburn freestanding wood-stove line — same 2.4 ft³ firebox tier, same 75,000 BTU/hr max output, same EPA 2020 cordwood certification, same 130 CFM blower included as standard. Traditional cast-iron door styling and pedestal aesthetic vs the Matrix's contemporary pedestal-with-panels design language. No soapstone panel option. Lower starting price than the Matrix. Choose the Osburn 2000 for the traditional aesthetic and lower purchase price; choose the Matrix for the contemporary styling, soapstone panel options, and the heavier-gauge top steel construction.
- Osburn 1700 Wood Stove Smaller sibling in the Osburn freestanding wood-stove line — 1.9 ft³ firebox, 65,000 BTU/hr maximum cordwood output, 500–1,800 sq ft heating range, traditional styling, significantly lower starting price than the Matrix. Choose the Osburn 1700 for smaller heating needs, lower purchase price, and traditional aesthetic; choose the Matrix for the larger 2.4 ft³ firebox, higher BTU output, contemporary styling, soapstone panel options, and the heavier-gauge top steel construction.
- Pacific Energy Super 27 Premium cross-brand competitor in the EPA-certified non-catalytic wood-stove category, built by Pacific Energy in British Columbia. 2.2 ft³ firebox, 80,000 BTU/hr max output, 79% efficiency, included Extended Burn Technology (EBT), heavy-gauge floating firebox design, both leg and pedestal configurations available, Mobile Home approved including in the US. Significantly higher purchase price than the Matrix. Choose the Pacific Energy Super 27 for the Pacific Energy floating-firebox build philosophy and the established premium cross-brand reputation; choose the Matrix for the larger 2.4 ft³ firebox, contemporary pedestal styling, soapstone panel options at order, and lower purchase price.
What chimney does it take?
A 6-inch flue: a listed factory-built chimney rated UL 103 HT in the US or ULC S629 in Canada, or a lined masonry chimney in good repair. The connector pipe and chimney are quoted from your installer's plan.
Does it need a blower?
No. Every Osburn heats by radiation and natural convection. The optional blower moves warm air into the room faster and helps in a larger or open space; it needs a 120-volt outlet.
Can I install it myself?
Many owners do the placement and the pipe with the manual in hand, but the chimney, the permit and the inspection are where an installer earns the fee. Insurance usually requires the inspection.
Can I return it?
Stoves ship by freight. Confirm the model and the options with us before you order, and contact us before returning anything.
What wood should I burn?
Seasoned hardwood, split and dried a year or more, below 20 percent moisture. Wet wood smokes, coats the chimney with creosote and makes a poor fire.
If you have any questions about this product, please let us know by filling out the form below, and we will contact you as soon as possible.
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