Osburn 3500 Wood Stove with Blower | OB03500

Powerful Whole-Home Heat with Clean, Modern Efficiency

Built for large homes, the Osburn 3500 delivers powerful, efficient wood heat with long burn times and dependable non-catalytic performance.

Key Features

• Up to 110,000 BTU heat output
• Heats spaces from 1,000–2,700 sq. ft.
• Large 3.5 cu. ft. firebox holds up to 50 lbs. of wood
• EPA 2020-certified clean burn at 1.6 g/h emissions
• Includes 130 CFM blower with thermodisc
• Up to 10-hour burn time

Product Features

High-Output Wood Stove for Large Homes

Designed to tackle harsh winter conditions, the Osburn 3500 wood stove delivers up to 110,000 BTU, making it ideal for large spaces and open-concept floor plans.

Large Capacity Firebox

The spacious 3.5-cubic-foot firebox holds up to 50 pounds of cordwood, enabling longer burn times and fewer reloads.

Clean, Non-Catalytic Combustion

Advanced non-catalytic technology ensures efficient fuel use and low emissions of 1.6 g/h, meeting strict EPA 2020 standards.

Included Blower for Heat Distribution

A 130 CFM blower with thermodisc circulates warm air throughout your home for more consistent comfort.

Durable Construction

Heavy-duty steel construction, refractory brick lining, and stainless secondary-air components ensure long-term performance and reliability.

Product Specifications

Heating Performance

General Features

Dimensions

Certifications

Minimum Clearances to Combustibles

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:

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