Osburn Everest III Wood-Burning Fireplace (OB04017)

High-Efficiency Zero Clearance Wood Fireplace Built for Serious Heat

The Osburn Everest III delivers powerful, EPA-certified wood heat with timeless design—engineered for comfort, efficiency, and reliable performance in harsh winter climates.

Key Features

• Heats up to 2,500 sq ft
• 85,000 BTU maximum heat output
• EPA 2020 certified non-catalytic combustion
• Zero clearance fireplace for new construction or remodels
• Built-in 176 CFM blower included
• Made in Canada with premium materials

Product Features

High-Efficiency Wood Heating Performance

The Everest III wood-burning fireplace is engineered to maximize heat output while minimizing emissions. With an optimum efficiency of 71.6%, it delivers dependable warmth even during power outages.

Zero Clearance Installation Flexibility

Designed as a zero clearance wood fireplace, the Everest III installs safely within framed enclosures—making it ideal for new construction, renovations, or full fireplace replacements.

Non-Catalytic Combustion Technology

This non-catalytic wood fireplace features advanced secondary air tubes and a C-Cast baffle system to improve combustion efficiency while simplifying maintenance.

Cast Iron Retractable Glass Doors

Durable cast iron doors provide flexibility:

• Closed-door mode for maximum heat retention
• Open-door mode (with required fire screen AC01226) for classic open-hearth ambiance

Optional NightFlame® Ceramic Glass

Upgrade with ROBAX® NightFlame ceramic glass, which darkens when the fire is out—concealing the firebox while maintaining a crystal-clear flame view during operation.

Built-In Blower for Improved Heat Circulation

The included 176 CFM premium blower helps distribute warm air more evenly throughout your living space, increasing comfort and overall heating efficiency.

Crafted in Canada

Manufactured in Canada, the Everest III reflects Osburn’s commitment to durability, quality materials, and long-term reliability in cold climates.

Product Specifications

Appliance Performance

Combustion & Technology

Firebox & Viewing Area

Blower & Heat Distribution

Overall Dimensions & Weight

Venting & Chimney Requirements

Approved Chimney Systems*

*Important: Specific chimney components or adapters may be required depending on the chimney manufacturer. Always follow the installation manual and local building codes. The certification label affixed to the appliance supersedes all published materials.

Installation & Approvals

Minimum Clearance to Combustibles

Warranty

Warranty Coverage – Osburn Wood Fireplaces

Osburn wood fireplaces 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:

• Zero-clearance wood fireplaces 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 fireplaces 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 Fireplaces 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 Fireplaces EPA Certified?

Yes. Osburn wood fireplaces 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 fireplaces are capable of heating 750 to over 2,000 square feet, depending on the model, home layout, and installation. While often installed for ambiance, Osburn fireplaces 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

Osburn Manufacturer FAQ

Is Osburn a good brand for wood fireplaces?
Yes. Osburn is widely regarded as a high-quality Canadian brand known for efficient, EPA-certified wood fireplaces and stoves.

Are Osburn fireplaces suitable for heating?
Yes. Many Osburn fireplaces are designed to heat large areas and can serve as primary or supplemental heat sources.

Are Osburn fireplaces EPA 2020 compliant?
Yes. Osburn wood fireplaces meet EPA 2020 emissions standards for installation in the U.S.

Where is Osburn located?
Osburn is based in Québec, Canada, and is part of Stove Builder In