Osburn Matrix 1900 Wood Insert OB01900 – High-Efficiency Wood Fireplace Insert for Home Heating
What are the key installation requirements and benefits of the Osburn Matrix 1900 Wood Insert OB01900 for existing fireplaces?
Treat your family to incomparable comfort with the Matrix 1900 wood-burning insert. Its magnificent cast-iron faceplate is adorned with a patterned upper louver and columns that frame its large door. Its discreet black wooden handle, air control with removable handle as well as flush mount blower disappear to leave room for the delicate details of its faceplate. Its large glass surface highlights a panoramic view of the flames to fully enjoy your moments near the fire.
NOTE: Shown with required door overlay (not included). The door overlay must be purchased to complete this unit.
Required Accessories:
- Black or brushed nickel cast iron door overlay
Why Choose Osburn Grill?
Osburn integrates cutting-edge combustion technology with premium craftsmanship, delivering unbeatable heating efficiency and a stylish focal point for your home. Ideal for homeowners seeking function and beauty.
Key Features
- Fuel type: Dry cordwood (16" recommended)
- Recommended heating area-ft²: 250- 1,200
- Overall firebox volume-ft³: 1.2
- EPA loading volume-ft³: 1.03
- Maximum burn time: 7 h
- Maximum heat output-dry cordwood: 45.000 BTU/h (13.19 kW)
- Overall heat output rate : 8,471 BTU/h (2.48 kW) to 32,293 BTU/h (9.46 kW)
- Average overall efficiency (dry cordwood): : 75% (HHV) 80% (LHV)
- Optimum overall efficiency: 82%
- Optimum heat transfer efficiency: 78 %
- Average particulate emissions rate: 1.5 g/h
- Average CO: 34 g/h
Manuals for Matrix 1900 Wood Insert OB01900
- Safety and General Information for Osburn Matrix 1900 Wood Insert OB01900
- Installation and Owner's Manual for Osburn Matrix 1900 Wood Insert OB01900
- Specifications Sheet for Osburn Matrix 1900 Wood Insert OB01900
Specifications for Osburn Matrix 1900 Wood Insert OB01900
- Combustion technology: Non-catalytic
- High-efficiency certified appliance: Yes, EPA 2020 approved
- Maximum log length: 17"
- Log positioning: Loading over the width
- Chimney diameter: 6"
- Flue outlet diameter: 6"
- Type of chimney: CAN/ULC S629, UL 103 HT (2100 °F)
- Minimum chimney height (feet): 12'
- Baffle type: C-Cast or equivalent
- Approved for a mobile home installation: No
- Shipping Weight: 332 lb (151 kg)
- Door type: Single, glass with cast iron frame
- Glass type: Ceramic glass
- Glass surface – dimensions (Width X Height): 18" x 8 1/8"
- Glass air-wash system: Yes
- Premium Quality Blower Included (CFM): 90
- Overall dimension: (Height) 23 7/8" (Width) 36" (Depth) 21"
- Door opening – dimension: (Height) 7 7/8" (Width) 18 1/4"
- Firebox – dimension: (Height) 8 7/8" (Width) 16 3/4" (Depth) 12 3/8"
- Moulded Refractory Bricks: Yes
- Stainless-steel secondary-air system improving gas combustion: Yes
-
Steel thickness – body: 3/16"
- Steel thickness – top: 3/16"
- Fireplace Opening- Minumum: (Height) 19" (Width) 25" (Depth) 15 1/2"
- USA standard (emissions): EPA
- Canadian Standard (emissions): CSA B415.1-10
- USA standard (safety): UL 1482, UL 737
- Canadian standard (safety): ULC S627
- 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 - top ( measured from the platform on which the appliance is installed) - 72"
- Clearance - Combustible side mantle to unit - 1"
- Clearance - Combustible top mantle to unit - 34"
- Clearance - Combustible side wall to unit - 16"
- Clearance - from the shelf to the base of the fireplace - 34"
United States
- Clearance - top ( measured from the platform on which the appliance is installed) - 72"
- Clearance - Combustible side mantle to unit - 1"
- Clearance - Combustible top mantle to unit - 34"
- Clearance - Combustible side wall to unit - 16"
- Clearance - from the shelf to the base of the fireplace - 34"
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

After installing the Osburn Matrix 1900 in our living room, we have noticed a significant improvement in our home's warmth. The sleek design adds a modern touch that complements our décor perfectly. Blower ensures even heat distribution. The contemporary design adds a touch of elegance to our space. The large glass door offers a beautiful view of the fire, creating a cozy ambiance during chilly evenings. It is efficient, easy to use, and has become the centerpiece of our gatherings.
Living in a colder climate, we needed a dependable heat source, and the Osburn Matrix 1900 delivers. The insert's impressive heat output keeps our home warm throughout the winter. The blower operates quietly and effectively, circulating warmth to every corner. The modern aesthetic is a bonus. Installation was straightforward, and the build quality is exceptional.
The Osburn Matrix 1900 is a powerhouse when it comes to heating. Our home stays warm even during the harshest winters. The blower effectively circulates heat, and the large firebox means fewer trips to reload wood. The contemporary design fits well with our décor. We are thoroughly impressed with its performance and design. The insert heats our home with ease, and the blower helps distribute the warmth evenly. The modern aesthetic gives it a contemporary appearance that we appreciate.
We live in a colder climate, so we needed something reliable to keep us warm during the winter. The Osburn Matrix 1900 Wood Insert has been a game-changer.
It’s not only efficient in terms of heat output but also environmentally friendly—it burns the wood cleanly and produces very little ash.
The insert looks sleek and modern in our living room, and it’s easy to operate.