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Osburn Matrix 1900 Wood Insert OB01900

Osburn Matrix 1900 Wood Insert OB01900

Call to hear about our SALE! (516)974-9742

Regular price $2,799.00 USD
Regular price Sale price $2,799.00 USD
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QUALIFIES FOR TAX CREDIT (Section 25C, US Tax Code) EPA approved 2020 - Non-catalytic, Heats 250-1200 sqr ft,, 17 inch log, 45,000 btu's, 82% efficiency, 1.2 Cu. Ft Fire box, 332 lbs


The Osburn 1900 must be installed into a masonry fireplace.

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.

The Matrix 1900 is a compact unit that has tapered top and sides for easy installation in smaller hearths. The deep bottom of its combustion chamber allows ash to accumulate and reduces the frequency of cleaning.


Fuel type : Dry cordwood (16" recommended)
Recommended heating area-ft² : () 250 - 1,200
Overall firebox volume-ft³ : 1.1
EPA loading volume-ft³ : 1.03
Maximum burn time : () 7 h
Maximum heat output-dry cordwood : (2) 45,000 BTU/h (13.19 kW)
Overall heat output rate < : (2) (3) 8,471 BTU/h (2.48 kW) to 31,700 BTU/h (9.29 kW)
Average overall efficiency (dry cordwood) : (3) 75 % (HHV) (4) 80 % (LHV) (5)
Optimum overall efficiency : (6) (7) 82 %
Optimum heat transfer efficiency : (8) 78 %
Average particulate emissions rate : (9) 1.5 g/h
Average CO : (10) 34 g/h

(1) Values are as measured per test method, except for the recommended heating area, firebox volume, maximum burn time and maximum heat output.
(2) The maximum heat output (dry cordwood) is based on a loading density varying between 15 lb/ft³ and 20 lb/ft³ and reloading intervals ranging from 60 to 120 minutes. Other performances are based on a fuel load prescribed by the standard without any reloading between start and finish. The specified loading density varies between 7 lb/ft³ and 12 lb/ft³. The moisture content is between 19% and 25%.
(3) As measured per CSA B415.1-10 stack loss method.
(4) Higher Heating Value of the fuel.
(5) Lower Heating Value of the fuel.
(6) Performances based on a fuel load prescribed by the standard at 7 lb/ft³ and with a moisture content between 19% and 25%.
(7) Optimum overall efficiency at a specific burn rate (LHV).
(8) The optimum heat transfer efficiency is for the low burn rate (using HHV) and represents the appliance’s ability to convert the energy contained in the wood logs into energy transferred to the room in the form of heat and does not take into account the chemical losses during combustion.
(9) This appliance is officially tested and certified by an independent agency.
(10) Carbon monoxyde.


Combustion technology Non-catalytic
High-efficiency certified appliance Yes, EPA 2020 approved
Maximum log length 17"
Log positioning Loading over 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 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"
Overall dimension (Width) 36"
Overall dimension (Depth) 21"
Door opening – dimension (Height) 7 7/8"
Door opening - dimension (Width) 18 1/4"
Firebox – dimension (Height) 8 7/8"
Firebox – dimension (Width) 16 3/4"
Firebox – dimension (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 – minimum (Height) 19"
Fireplace opening – minimum (Width) 25"
Fireplace opening – minimum (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 S628
Tested and listed as per applicable standards By an accredited laboratory (CAN/USA)
Warranty Limited lifetime

OSBURN MATRIX 1900 MANUAL (Click here)




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