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Osburn
Osburn Matrix 2700 Wood Insert
A 2.5 cu ft non-catalytic wood insert with the largest viewing window in the Osburn insert line and a 176 CFM blower as standard.
Available options
Cast-iron door overlay finishes: Black or Brushed Nickel.
Kaminos is our fireplace retail store under the same ownership. View current pricing and available options there. For installation enquiries, contact Brown Chimney; availability depends on your location.
About this model
Overview
The Matrix 2700 is a 2.5 cu ft non-catalytic wood insert built around a contemporary cast-iron faceplate, with a 24 3/8 in x 12 5/8 in ceramic glass window set flush into a masonry fireplace.
It is EPA 2020 cordwood certified at 1.2 g/hr published average particulate emissions, against a 2.5 g/hr cordwood limit, and includes a 176 CFM heat-activated blower as standard.
Is this right for your home?
Replacing an inefficient open masonry hearth with a controlled heat source, where up to 2,200 sq ft of zone heating from a 2.5 cu ft firebox is wanted.
Check before ordering
- The masonry opening against the manual's minimum of 27 1/8" H x 31 3/4" W x 22 1/8" D.
- The condition of the chimney, since the insert is installed with a continuous full-height stainless steel liner.
- Local particulate rules, where the published 1.2 g/hr average may be relevant.
- Access to seasoned firewood at roughly 15-20% moisture, with logs up to 20" east-west.
Worth knowing
- Not suitable for factory-built (prefabricated) metal fireplaces or mobile homes.
- Maximum burn time is a published 8 hours; real results depend on the firewood and how the appliance is run.
Specifications
Figures published by the manufacturer. Where a value applies to a specific model or configuration, it is noted in the row.
| Fuel | Wood (cordwood) |
|---|---|
| Firebox volume | 2.5 cu ft |
| Combustion type | Non-catalytic |
| Maximum heat output | 80,000 BTU/hr |
| Heating area | Up to 2,200 sq ft |
| Maximum burn time | 8 hours |
| Emissions | 1.2 g/hr published average particulate (EPA 2020 cordwood certified) |
| Maximum log length | 20" (east-west) |
| Viewing window | 24 3/8" x 12 5/8" ceramic glass |
| Blower | 176 CFM heat-activated, included |
| Door overlay finishes | Black or Brushed Nickel cast iron |
| Minimum fireplace opening | 27 1/8" H x 31 3/4" W x 22 1/8" D (per manual) |
Installation
A wood insert is fitted inside a lined masonry fireplace with a continuous stainless steel liner running the full height of the chimney. The manual gives a minimum fireplace opening of 27 1/8 in high x 31 3/4 in wide x 22 1/8 in deep for this model.
Brown Chimney can measure the opening, inspect the existing chimney and confirm what liner work the installation would involve before anything is ordered.
Service availability depends on your location.
What to check before installation
What an assessment of this model would cover:
- Measured height, width and depth of the existing masonry opening.
- Chimney condition and the liner run required for its full height.
- Hearth extension, surround finish and the door overlay against the faceplate.
Product documentation
No manufacturer manual or specification sheet link has been verified for this model yet. Product details and imagery on this page come from the Kaminos product page.
Frequently asked questions
The manufacturer publishes a heating area of up to 2,200 sq ft. Real-world results depend on insulation, layout, climate and firewood moisture content.
Seasoned hardwood at roughly 15-20% moisture content. Wet wood reduces output and increases deposits in the chimney.