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Osburn 36 Inch Matrix Wood Fireplace Insert
- Color: Black
- Size: 36 Inches
- Dimensions: 36 1/8" W x 25 1/8" H x 23 1/8" D
- 8-hour burn time
- Contemporary design
- Limited lifetime warranty
- Manual air intake control
- Utilizes glass air-wash system
- Variable-speed blower circulates air
- Non-catalytic wood-buring fireplace insert
- Carbon steel body with cast iron door frame
- 4 mm thick heat-resistant ceramic glass viewing window
Popular Accessories for this Item
Venting Components
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.
Product Details
Part Number: OB02028 eFireplaceStore Item Number: OSB-OB02028 Features
Technical Specifications
*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. Osburn has reviewed their procedures and construction to make the already-reliable Matrix wood fireplace insert even better. This carbon steel insert features high efficiency and very little particulate emissions, making it an excellent choice for environmentally conscious people. This massive fire feature fills your home with warmth with the help of its variable-speed blower, but even in the event of a power outage, it generates enormous heat. Osburn has bettered the Matrix wood-burning fireplace insert by modifying the cast iron door to improve its functionality, truly making this updated version a cut above the rest. Wood Burning Inserts (Buyers Guide) The Basics Of The Fireplace Flue The Fireplace Hearth Then and Now How Ash Buckets Protect You From Fire Embers How to Choose the Right Venting for your Fireplace How To Maximize Heat From Your Wood Burning Heater Ideas On How To Remodel Your Fireplace How An Outside Air Kit Helps Your Fireplace Can Wood Moisture Meters Increase The Strength Of Your Fire? Unify Your Fireplace and Room Designs |
Customers Who Viewed This Item Also Viewed
Customer Questions & Answers
14 Questions &
14 Answers
Alejo V.
from Springfield, VA asked:
August 18, 2022
Is this unit good for a 36" W x 41" H opening?
1 Answer
The minimum fireplace requirements are:
Minimum Width: 28 7/8"
Minimum Height: 23 5/16"
Minimum Depth: 19 5/8"
Submitted by:
Kathy O.
on August 19, 2022
Paul Y
from Dayton, OH asked:
May 4, 2022
Can I purchase additional surrounds?
1 Answer
There are additional surround components that are listed on the product page under "choose faceplate".
Submitted by:
Aaron D.
on May 4, 2022
Jeremy G
from Indianapolis asked:
November 20, 2021
Can the door be switched to open on the other side?
1 Answer
The position of the door can not be changed.
Submitted by:
Brennan W.
on November 21, 2021
Victor R
from Big Spring, Texas asked:
September 8, 2021
Does this insert quality for the tax credit?
1 Answer
Indeed, it does, you can reference the manufacturer's Certificate of Qualification here.
Submitted by:
Devon P.
on September 9, 2021
Andrew
from Cincinnati asked:
August 6, 2021
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?
1 Answer
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
Jesse
from Oklahoma asked:
January 7, 2021
Does the unit require fresh air intake?
1 Answer
No, fresh air intake is not required.
Submitted by:
Tyler M. - NFI Master Hearth Professional
on January 7, 2021
Vinay S
from Hendersonville ND asked:
January 5, 2021
Can this insert be installed in a prefab wood burning fireplace?
1 Answer
No, this insert is intended for installation in a masonry/brick fireplace.
Submitted by:
Tyler M. - NFI Master Hearth Professional
on January 6, 2021
Dee K
from Montclair NJ asked:
December 19, 2020
Does this fireplace operate without the blower?
1 Answer
This unit does indeed operate and provide heat without the blower.
Submitted by:
Brennan W.
on December 20, 2020
Jason
from Crestline, CA asked:
November 7, 2020
Is the bottom faceplate required for installation? Does the insert have legs or what does it rest on?
1 Answer
As you can see in the installation manual, the insert as shown has a bit of an elevated firebox, but a flat bottom so that the insert simply sits on the floor of the existing fireplace.
Submitted by:
Tyler M. - NFI Master Hearth Professional
on November 9, 2020
Kenneth K
from Southampton, NJ asked:
September 29, 2020
Can the blower motor be switched from one side to the other?
1 Answer
There is no way to change the blower configuration as set by the manufacturer.
Submitted by:
Tyler M. - NFI Master Hearth Professional
on September 30, 2020
Ken K.
from Southampton, NJ asked:
September 26, 2020
What gauge wire is needed for the blower motor? Will temperatures behind the insert be too high to locate an outlet there? If not, can it be hard-wired?
1 Answer
The blower includes its own cord, and an outlet may be installed within the masonry fireplace if permitted by local electrical codes. Most customers use an external outlet, however.
Submitted by:
Tyler M. - NFI Master Hearth Professional
on September 28, 2020
Linda D
from Glen Arbor, MI asked:
September 1, 2020
Does this unit have a blower?
1 Answer
Yes, a variable speed blower is included.
Submitted by:
Tyler M. - NFI Master Hearth Professional
on September 1, 2020
Steven S
from CO asked:
July 8, 2020
What is the BTU rating? What is the efficiency rating? What are the dimensions of the flashing?
1 Answer
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
Michelangelo
from Shirland, IL asked:
October 8, 2019
What is the minimum install dimensions?
1 Answer
The Matrix insert requires a masonry fireplace at least 28 7/8" wide x 23 3/8" high x 19 5/8" deep. Please see page 32 of the installation manual for more details.
Submitted by:
Cortney O.
on October 9, 2019
Customer Reviews
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100% Recommend this product (1 of 1 responses)
By Evan from
Prescott, AZ on January 18, 2020
I would recommend this item to a friend.
Excellent insert
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
Modern look
Flush mount (if your fireplace is deep enough)
Blower motor assembly has a loud intermittent vibration.
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.
