Wood Burning Insert · 45,000 BTU · 36" Wide
The Osburn Matrix 1900 is a non-catalytic wood insert with a cast iron faceplate, a flush-mount blower and tapered top and sides. It is built to go into smaller masonry hearths without a fight.
The Matrix 1900 wears a cast iron faceplate with an upper louver and framed columns. A discreet black wooden handle, a removable-handle air control and the flush-mount blower blend in so that the detail of the faceplate stands out. The glass gives a broad view of the flames.
The top and sides are tapered, which makes installation in smaller hearths easier, and the deep combustion chamber lets ash build up so you clean it less often. Logs up to 17" load over the width, and the minimum fireplace opening is 19" H x 25" W x 15 1/2" D.
A door overlay is required to complete the insert. Installation must strictly follow the owner's manual. This model is EPA 2020 approved and is not approved for mobile home installation.
| Fuel Type | Dry cordwood (16" recommended) |
| Combustion Technology | Non-catalytic |
| Maximum Burn Time | 7 hours |
| Maximum Heat Output | 45,000 BTU/h |
| Overall Heat Output Range | 8,471 - 32,293 BTU/h |
| Maximum Log Length | 17" |
| Chimney Diameter | 6" |
| Minimum Chimney Height | 12 ft |
| Shipping Weight | 332 lbs |
| Overall Dimensions | 23 7/8" H x 36" W x 21" D |
| Glass Surface | 18" x 8 1/8" |
| Door Opening | 7 7/8" H x 18 1/4" W |
| Firebox | 8 7/8" H x 16 3/4" W x 12 3/8" D |
| Minimum Fireplace Opening | 19" H x 25" W x 15 1/2" D |
| Mobile Home Approved | No |
A door overlay in black or brushed nickel is required.
The tapered top and sides help with smaller hearths. The minimum opening is 19" H x 25" W x 15 1/2" D.
Yes, a flush-mount 90 CFM blower is included.
No. It is not approved for mobile home installation.
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