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 2000 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 medium-to-larger homes, well-insulated open-plan two-story spaces, or one stove serving as primary winter heat across 1,200–1,800 sq ft of conditioned space, with reasonable insulation and access to seasoned hardwood at 15–20% moisture content.
Buyers stepping up from the Osburn 1700 medium-stove platform who want a meaningful firebox jump, longer 20-inch logs, and longer burn cycles.
How it performs
The 75,000 BTU/hr maximum is a peak rating, transient, achieved on dry cordwood at high loading density and short reload intervals.
Good to know
- Same platform as the Enerzone Solution 2.3.
- Medium-large firebox, medium-long burn time. A 2.4 ft³ non-cat stove gives you meaningful primary-heat capability across 1,200–1,800 sq ft, with realistic 6–7 hour burn cycles.
- The 2,100 sq ft figure is aspirational. The most consistent owner regret across medium-large stoves is buying for the high end of the manufacturer's heating range.
Specifications
Dimensions
Dimensions from the specification sheet
| Measurement | Value |
|---|---|
| Overall height | 33‑1/8" |
| Overall width | 27" |
| Overall depth | 29" |
| Shipping weight | 390 shipping lb |
| Glass, W x H | 17‑1/8 x 10‑1/4 |
| Door opening | 17‑1/2 W x 9 H |
| Firebox, W x H x D | 21 W x 11‑7/8 H x 16‑3/4 D |
Dimensions
| Measurement | Value |
|---|---|
| Firebox volume | 2.4 ft³ overall / 1.95 ft³ EPA |
| Glass | Viewable glass surface, ceramic |
| Door opening | 17 1/2" W x 9" H |
| Shipping weight | 390 lb (without option) |
Where it can go
The Osburn 2000 is approved for installation in residential homes, cabins, sunrooms, alcoves (with double-wall pipe connector), and mobile or manufactured homes (with the required fresh-air intake kit and insulated intake pipe). It is not approved for installation in factory-built (prefab) metal fireplaces or in any outdoor or unconditioned space.
Clearances to combustibles
Floor protection
For the Osburn 2000, the manual specifies no R-factor required for floor protection — only a continuous, non-combustible material. Approved materials include steel of at least 0.015" thickness, ceramic tiles sealed together with grout (over a continuous non-combustible sheet beneath), cement board, brick, or any other approved or listed material suited for floor protection. Tile alone is not sufficient — a continuous non-combustible sheet beneath the tile is required.
Floor protection dimensions per the manual: in Canada, 18 inches forward of the door opening and 8 inches each side; in the USA, 16 inches forward of the door opening and 8 inches each side. In Canada, the manual also requires ember protection extending at least 18 inches in front of any door and 8 inches on other sides per CSA B365. No floor protection is required if the stove is installed on a non-combustible floor (concrete slab, for example).
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
The manual specifies clearances based on whether single-wall or double-wall pipe connector is used, and adjusts further for heat-shielded installations and lowered ceilings. The manual's clearance tables include separate values for Canada and USA, single- and double-wall pipe, with and without heat shields, lowered ceilings, alcoves, and mobile homes. Where the clearance reduction is on the same side as the door handle, the manual requires a minimum 6-inch clearance from the side wall — review with your installer before purchase. Reduced clearances may also be achieved using approved wall heat-shield construction described in the manual; the construction rules and reduction percentages are specific to the configuration.
Always confirm the binding clearance figures against the certification label on the back of the stove and your local code.
Documents
- Wood stove manual | Safety notifications & general information (PDF - 2.9 MB)
- Osburn 2000 wood stove install & owner's manual (PDF - 6.5 MB)
- Osburn 2000 dimensions (PDF - 0.4 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
| 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 | 2.3 g/hr |
| Maximum burn time | Up to 8 hours |
| Recommended log length | 16 in east-west |
| Maximum log length | 20 in east-west |
| Construction | Carbon steel, cast-iron door |
| Required configuration | Base + door overlay |
| Baffle | C-Cast |
| Glass | Viewable glass surface, ceramic |
| Blower | Included, up to 130 CFM variable speed |
| Flue connection | 6 in |
| Combustion chamber | 21" W x 16 1/2" D x 11 7/8" H |
| Door opening | 17 1/2" W x 9" H |
| Shipping weight | 390 lb (without option) |
| Mobile home approved | Yes |
| Alcove install approved | Yes |
| Country of origin | Made in Canada |
| Model | OB02015 |
| 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, rockfordchimneysupply.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, and blower 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 | Secondary-air tubes reignite smoke gases. No catalyst to replace; one air-control lever; simpler operation than a cat stove but shorter low-and-slow burn times. |
| Maximum heat output | 75,000 BTU/hr | Peak output on dry cordwood, transient. 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 1,200–1,800 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% optimum overall efficiency at low burn rate; 76% optimum heat transfer efficiency. HHV is the federal standard. Government incentives may apply by jurisdiction and installation date. |
| Particulate emissions | 2.3 g/hr | EPA 2020 limits are 2.0 g/hr crib-wood or 2.5 g/hr cordwood. The stove is listed as compliant with the 2020 cordwood standard. |
| Maximum burn time | Up to 8 hours | Manufacturer maximum at the lowest air setting. Useful heat through a burn cycle is realistically 6–7 hours. |
| Recommended log length | 16 in east-west | Per manual. Most firewood suppliers cut to this length. |
| Maximum log length | 20 in east-west | 4-inch margin over the recommended length — meaningful for buyers with access to longer-cut firewood. Logs load across the width of the firebox, sides visible from the door. |
| Combustion chamber | 21" W x 16 1/2" D x 11 7/8" H | Inside firebox dimensions per manual. Wider than deep; the 16 1/2" depth is generous enough to accept N-S loading for packed cold-weather cycles in addition to the default E-W loading. |
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.
Door overlay
| Door overlay | Part | Price |
|---|---|---|
| BLACK DOOR OVERLAY | OA10237 | $110 |
| BRUSHED NICKEL DOOR OVERLAY | OA10238 | $330 |
Base
| Base | Part | Price |
|---|---|---|
| BLACK CAST IRON TRADITIONAL LEGS WITH ASH DRAWER | OA10226 | $330 |
| BRUSHED NICKEL CAST IRON TRADITIONAL LEGS WITH ASH DRAWER | OA10228 | $765 |
| BLACK CAST IRON STRAIGHT LEGS WITH ASH DRAWER | OA10235 | $550 |
| BRUSHED NICKEL CAST IRON STRAIGHT LEGS WITH ASH DRAWER | OA10236 | $825 |
| PEDESTAL WITH ASH DRAWER | OA10239 | $440 |
| 5"Ø FRESH AIR INTAKE KIT FOR WOOD STOVE ON LEGS (on request) | AC01211 | $220 |
| 5"Ø FRESH AIR INTAKE KIT FOR WOOD STOVE ON PEDESTAL (on request) | AC01336 | $120 |
Fresh air
| Fresh air | Part | Price |
|---|---|---|
| 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 |
| QUICK CONNECT THERMODISC (on request) | AC02055 | $80 |
| 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 |
| BLACK STEEL HEARTH PAD 46 3/4'' X 54" (on request) | AC02788 | $420 |
| GLASS ASH LIP (on request) | OA10132 | $165 |
What arrives
- Osburn 2000 wood stove (OB02015) with welded carbon-steel firebox and arched cast-iron glazed door
- Choice of base, configured at order: multiple cast-iron leg styles in Black or Brushed Nickel, or pedestal — each with built-in ash drawer
- Choice of door overlay, configured at order: Black or Brushed Nickel
- 130 CFM variable-speed blower with rheostat control (HI/LO/OFF)
- Decorative side panels
- C-Cast baffle and stainless-steel secondary-air tube assembly
- High-density refractory firebrick lining
- Ash lip pan
- Owner's manual and product documentation
Sold separately
- Code-compliant 6-inch chimney system — listed factory-built chimney for new installations, or an approved masonry chimney/liner configuration where permitted by code and verified by the installer/AHJ; required venting components are sold separately
- Single-wall or double-wall pipe connector between the stove and chimney — double-wall is required for alcove and mobile-home installations and reduces clearance requirements
- Hearth pad or floor protection sized to manual specifications, with continuous non-combustible sheet beneath any tile
- Optional thermodisc heat sensor — automatic on/off control for the included blower based on stove temperature
- Optional ash lip glass panel — visible glass strip at the door opening
- Optional 5-inch fresh-air intake kit — required for mobile-home installations and for code or mechanical-ventilation requirements; separate part numbers for stoves on legs vs pedestal
- 5-inch insulated flex pipe for fresh-air intake (ULC S110 / UL 181 class 0 or class 1 insulated HVAC pipe) — required for mobile-home installations
- Optional 5-inch fresh-air intake register with airtight damper — useful where local code, airtight-home design, or owner preference calls for a closable outside-air damper; do not close while the stove is in use
- Optional rigid fire screen (SBI AC01315) — not permitted for open-door use in the United States or in Canadian provinces/jurisdictions with particulate-emission limits; never permitted for use in a mobile home; never leave the stove unattended when used with a fire screen
- Optional heat shield for further clearance reductions (subject to the door-handle 6" side-wall exception per manual)
- Pin-type wood moisture meter — not optional in practice
- Stove-top or flue thermometer — strongly recommended; not optional in practice
- 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 |
The Osburn 2000 performs best on a 6-inch chimney flue system. New factory-built chimney systems must comply with UL 103 HT (USA) or ULC S629 (Canada) and be suitable for solid fuel. The stove may also be connected to a code-compliant masonry chimney, provided the chimney has either a clay liner or a suitably listed stainless-steel liner and the application is verified by a qualified installer. Minimum chimney height must follow the current manual, certification label, installer verification, and local code. 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, subject to local code and installer verification.
For mobile-home installations, single-wall pipe is strictly forbidden — only double-wall pipe is permitted, and a fresh-air intake kit with insulated intake pipe is required. The fresh-air intake pipe (HVAC type) must meet ULC S110 or UL 181 class 0 or class 1.
Outside air
An optional fresh-air intake kit is available for code jurisdictions requiring outside combustion air, for tight new-construction homes with mechanical ventilation, and is required for mobile-home installations. Mobile-home installations also require insulated 5-inch flex pipe (ULC S110 / UL 181 class 0 or class 1 insulated HVAC pipe). 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. 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?
- Enerzone Solution 2.3 Same SBI medium-large stove performance platform — same firebox class, same combustion chamber, same 20" log capacity, same 75,000 BTU/hr maximum, same warranty schedule, same EPA 2020 certification class. The Solution 2.3 is the plainer Enerzone-tier version with seven base configurations at the Enerzone price point, blower optional and sold separately, no required door overlay step. The Osburn 2000 adds the Osburn brand finish, the required door overlay choice in Black or Brushed Nickel, and the 130 CFM blower included as standard. Choose by the brand, finish, and whether you want the blower included or as a separate purchase.
- Osburn 1700 Smaller Osburn-tier model. 1.86 ft³ firebox, 65,000 BTU/hr max, 500–1,800 sq ft heating range, 18" log capacity, 7-hour burn, blower optional. Choose the Osburn 1700 for heating under 1,500 sq ft and the smaller footprint; choose the Osburn 2000 for the bigger firebox, 20-inch logs, longer burn time, primary heat in larger spaces, and the included blower.
- Osburn Matrix Same SBI medium-large platform as the Osburn 2000 with contemporary European styling, an optional steel or Quebec-soapstone top and side panels, and lower published emissions of 1.54 g/hr. Includes the same 130 CFM blower. Choose the Matrix if you want the modern aesthetic and class-leading emissions; choose the Osburn 2000 if you want the traditional arched cast-iron door look at a lower price point.
- Pacific Energy Super 27 Premium cross-brand competitor in the medium-large stove class. 2.0 ft³ firebox, sealed-firebox technology, premium build, higher price. The most-mentioned cross-shop on hearth-enthusiast forums for buyers comparing mid-to-large non-cat stoves. Higher price; longer real-world burn potential.
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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