Below is a list of chimney components that are compatible with this item. If you are comfortable picking the components that you need for venting this item, please choose from the items below. If you need any help at all, please use our FREE advice from our certified fireplace specialists.
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Manufacturer:Osburn Part Number: OB02028 eFireplaceStore Item Number: OSB-OB02028
Ceramic glass door
Unique integral surround
Includes 90CFM rotary blower
Refractory brick lined firebox
Exceeds EPA 2020 emissions requirements
Features up to eight hours of burn time
Installs into existing fireplace openings
Recommended Heating Area: 500-2,100 Square Feet
Firebox Volume: 2.4 Cubic Feet
Firebox Dimensions: 21" W x 11 7/8" H x 16 3/4" D
Maximum Log Length: 20"
Flue Size: 6"
Weight: 484 Pounds
Glass Dimensions: 19 5/8" W x 11 7/8" H
Steel Top Thickness: 5/16"
Steel Body Thickness: 3/16"
Overall Dimensions: 36 1/8" W x 25 1/8" H x 23 1/8" D
Required Fireplace Minimum Width: 28 7/8"
Required Fireplace Minimum Height: 23 5/16"
Required Fireplace Minimum Depth: 19 5/8"
Hourly Emissions: 1.54 Grams
Max BTU Output: 75,000 BTU/h
Max BTU Output with Chimney Loss: 28,600 BTU/h
Optimum Efficiency: 77%
*Venting Requirements: This unit requires venting pipe with an inner diameter of 6 Inches. Please see the Venting Components section on this page if available for venting pipe that must be used with this unit.
Wanting the top of the line for your home's fiery centerpiece? This updated version of the Matrix Wood Insert will seduce you with an average particle emission rate as low as 1.54 g/h. The latest modifications made to this box are well in tune with the industry standards required for 2020. Although it retains a unique style that is both massive and sleek, the door mechanism has been reviewed to make it more functional. Adding a set of intermediate trim panels may be required to complete your masonry hearth. Always the same legendary Osburn quality.
Do you sell the Osburn 3500 insert? Also, what's the most important spec to consider to achieve the best bang for the buck? BTU rating? Firebox size?
Yes, we also sell the Osburn 3500 insert. The most important data to look at when shopping inserts is the listed heated area. For example, the Osburn 3500 insert is listed to heat up to 2,700 square feet. The actual heating capability will depend on the location of the appliance, insulation of the home, etc.
Submitted by:Tyler M. - NFI Master Hearth Professional on August 6, 2021
What is the BTU rating? What is the efficiency rating? What are the dimensions of the flashing?
While this insert does not include a surround, the measurements of the faceplate are 25 1/8" H x 36 1/8" W. The optimal efficiency is 77.2% and the maximum Btu output is 75,000 Btu/hr using seasoned hardwood.
Submitted by:Will M. - NFI Certified Master Hearth Professional on July 8, 2020
We purchased the Matrix insert for the modern look, large viewing glass, and the flush mounting fit of it.
The build quality seems to be excellent and the fit and finish of the door and all the trim pieces is good.
I've lit a couple dozen fires in it so far and only have one complaint involving the blower assembly. Every now and then some part of the assembly will start a loud vibration, so something must be loose. I haven't yet investigated the issue further.
The insert puts out plenty of heat. I live in a poorly insulated house with temps currently in the 20s overnight. The temperature will stay nice and comfortable inside.
Solid build quality
Good fit and finish
Flush mount (if your fireplace is deep enough)
Blower motor assembly has a loud intermittent vibration.