Osburn Matrix Wood Insert High-Efficiency Heating Solution for Medium to Large Spaces
What makes the Osburn Matrix Wood Insert (OB02028) a top choice for eco-friendly, efficient home heating?
The Osburn Matrix Wood Insert (OB02028) is a cutting-edge heating solution designed to provide efficient and consistent warmth for medium to large homes. With a heat output of up to 75,000 BTU/h and a 79% combustion efficiency, this wood insert ensures optimal heating while reducing energy consumption. Ideal for spaces ranging from 500 to 2,100 square feet, it accommodates logs up to 16 inches long and features a 2.4 cubic foot firebox for long burn times. Its sleek, contemporary design includes a glass air-wash system to maintain a clear view of the flames, while a powerful 90 CFM blower ensures even heat distribution. The Osburn Matrix Wood Insert is built with a cast iron door and stainless-steel secondary-air system, which improves combustion efficiency, reduces emissions, and adheres to stringent environmental standards. Perfect for those seeking both performance and style, this insert offers an energy-efficient, eco-friendly heating solution for your home.
Also Available in Osburn Matrix Wood Insert w/ Connector and 5.5" x 25' Liner Kit OB02028K!
Why Choose Osburn Matrix Wood Insert
The Osburn Matrix Wood Insert combines superior heating efficiency, eco-friendly emissions, and modern design, making it the perfect choice for homeowners seeking reliable, high-performance heating for medium to large spaces.
Key Features
- Fuel type: Dry cordwood (16" recommended)
- Recommended heating area-ft²: 500- 2,100
- Overall firebox volume-ft³: 2.4
- EPA loading volume-ft³: 2.02
- Maximum burn time: 8 h
- Maximum heat output-dry cordwood: 75.000 BTU/h (22.0 kW)
- Overall heat output rate : 14,800 BTU/h (4.34 kW) to 28,600 BTU/h (8.38 kW)
- Average overall efficiency (dry cordwood) : 69% (HHV) 74% (LHV)
- Optimum overall efficiency: 77%
- Optimum heat transfer efficiency: 75%
- Average particulate emissions rate: 1.54 g/h
- Average CO: 89.4 g/h
Manuals for Matrix Wood Insert OB02028
- Installation and Owner's Manual for Osburn Matrix Wood Insert OB02028
- Specifications Sheet for Osburn Matrix Wood Insert OB02028
Specifications for Osburn Matrix Wood Insert OB02028
- Combustion technology: Non-catalytic
- High-efficiency certified appliance: Yes, EPA 2020 approved
- Maximum log length: 20"
- Log positioning: Loading over the width
- Chimney diameter: 6"
- Flue outlet diameter: 6"
- Type of chimney: Liner - ULC-S635, CAN/ULC-S640, UL1777
- Minimum chimney height (feet): 12'
- Baffle type: C-Cast or equivalent
- Approved for a mobile home installation: No
- Shipping Weight: 491 lb (223 kg)
- Door type: Single, glass with cast iron frame
- Glass type: Ceramic glass
- Glass surface – dimensions (Width X Height): 19 5/8" X 11 7/8"
- Glass air-wash system: Yes
- Premium Quality Blower Included (CFM): 90
- Overall dimension: (Height) 25 1/8" (Width) 36 1/8" (Depth) 23 1/8"
- Door opening – dimension: (Height) 8 3/4" (Width) 17 1/2"
- Firebox – dimension: (Height) 11 7/8" (Width) 21" (Depth) 16 3/4"
- Moulded Refractory bricks: Yes
-
Stainless-steel secondary-air system improving gas combustion: Yes
- Fire box lined with refractory bricks for better heat distribution: Yes
-
Steel thickness – body: 3/16"
- Steel thickness – top: 5/16"
- Fireplace opening – minimum: (Height) 23 3/8 (Width) 28 7/8 (Dept) 19 5/8
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USA standard (emissions): EPA/ ASTM WK47329
- Canadian Standard (emissions): CSA B415.1-10
- USA standard (safety): UL 1482, UL 737
- Canadian standard (safety): ULC S628
- Tested and listed as per applicable standards: By an accredited laboratory (CAN/USA)
- Warranty: Limited lifetime
Minimum Clearances to Combustibles:
(Data expressed in inches. 1 inch = 25.4 mm)
Canada
- Clearance - Combustible side mantle to unit - 9"
- Clearance - Combustible top mantle to unit - 27"
- Clearance - Combustible side wall to unit - 16"
- Clearance - minimum floor protection in front of the appliance - 18"
- Clearance - from the top of the unit to the shelf - 27"
United States
- Clearance - Combustible side mantle to unit - 9"
- Clearance - Combustible top mantle to unit - 27"
- Clearance - Combustible side wall to unit - 16"
- Clearance - minimum floor protection in front of the appliance - 16"
- Clearance - from the top of the insert to the shelf - 27"
The information given on the certification label affixed to the appliance always overrides the information published in any other media (owner's manual, catalogs, flyers, magazines, and/or websites).
Note: Some appliances have been tested with a low ceiling. Before setting up your unit, refer to the installation manual.
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Let customers speak for us
from 4072 reviewsI was able to get a Novus 33 in brick refractory back for my NG Novus fireplace insert. Novus is a high demand item and Flame authority was only supplier without a huge delay from manufacturer. I recommend them for all fireplace needs.

Great service and great product

Product is great, free shipping was good, and unpacking and installing it was easy. Customer support was great too, both with the sales and shipping carrier. After much research…the Modern Flames Redstone is the one.

A+ = both the sale, the shipping process, and the product

I purchased burner and fire box. I emailed and spoke with Jim . He helped me from start to finish. Great service
The mantel required a little bit of sanding and prep before painting, but was good quality. Flame Authority did an excellent job shipping and it arrived by freight in perfect condition.
The mantel assembled well. I ended up using some construction adhesive to glue the legs on to make it a little more sturdy. I cut pocket holes in the top to attach it to the wall.
Very happy with our purchase!

I shopped for a grill for two people. I want it to last for ten years or more. I want it to get really hot for grilling steaks after they have been cooled sous vide. I want it to be useful also for lower temp cooking. This Blaze grill is perfect for me and my wife. Our purchase through Flame Authority was completed with no problems. I am totally satisfied with this grill and highly recommend it for anyone with similar needs.

Came as advertised and without any delays. Arrived quickly. No issues and would buy from flame authority again.

I wanted to make sure of the size and features of this oven. I called Flame Authority and Mary answered the call. She gave me all the details and I was really amazed coz she really knows what she is selling. Expert with sales and communication. Thumbs Up!

I bought the stove couple weeks ago and ended up having a chance running it a few days I am very pleased with the outcome of the amount of heat it gets out also with the amount of hours it burns at least eight hours. I would recommend this for anyone who is looking for hours of heat output. At first when I bought it I didn’t quite know if mine hopes will be for filled but now they are happy with it. I would recommend this to anyone as a trusted tester of it I am very pleased of the outcome it rains.!

Nice , polite and helpful, when you would call with questions.Fireplace looks nice and throws a decent amount of heat , just a bit of a delay in delivery. Ended up getting it End of January, right before guests arrived. But still only took 3 weeks to get. Thank you Flame Authority !!!

I didn't expect to have this fireplace earlier than the lead time they promised. It looks stunning in my living room and now we are prepared for the upcoming winter season! I am happy with all the updates! Customer service representatives keep on updating me with the process of my order until delivery they are checking it for you! 10 stars for Flame Authority!

Simply beautifully designed. Very efficient. Looks gorgeous in our mid century modern home in a corner space. Will save us $$$ on electric heat bills and is easy to clean with fireplace glass cleaner.

I believe it was David Novak that helped me. Someone ALWAYS answered the phone and located this burner when I couldn't find it anywhere else. It almost seemed too good to be true. But it wasn't. The burner is now nestled in my new outdoor kitchen and am very pleased.

Thank you for a very smooth transaction. the remote is very useful. It is very easy to install

Wanted something efficient but also clean-looking, and the Matrix ticked all the boxes. The modern design blends well with our updated home, and the big glass door really lets the fire shine through. It puts out a lot more heat than I expected, and I’ve been able to cut down our gas furnace use significantly this winter. My husband handles the wood, but I do the daily lighting and it is easy to get going once you know the airflow settings. The secondary combustion system really works. I see less smoke and use less wood than I used to.
It has a more contemporary look than some other wood inserts, which fit our style better. The firebox is not the biggest, but it is enough for our smaller ranch-style home. I do wish the blower was just a little quieter at high speed, but otherwise it has been super reliable. This one has a low-profile frame that worked really well for our space. I use it to heat our main living room and kitchen area. Easy to clean, and the glass stays pretty clear.
Installed the Osburn Matrix last fall into our existing masonry fireplace, and it has been amazing. We live in Maine and heat mostly with wood, and this insert has no trouble warming our 1,700 sq ft home. The firebox is a decent size. I usually load it up before bed, and we still have coals in the morning. The fan helps push heat out to the rest of the house, and the sleek design with the flush front looks great in our living room. Installation took a full day, but it was worth every minute.
I love that it uses less wood than I expected while still maintaining excellent heat.