The Matrix wood insert will seduce you with an average particle emission rate as 2.3 g/h and an optimal efficiency of 79%. 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, we have reviewed the door mechanism 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.
Maximum BTUs/hr: 75,000
Heats Up To: 500 – 2,100 sq ft
Efficiency: 79%
Product Size: Medium
Log Size: 20″
Burn Time: up to 8 hrs
Firebox Capacity: 2.4 cu. ft.
Emissions (gms/hr): 2.3
Room Size: Large
Vent Type: Stainless
Vent Size (Exhaust): 6″
Masonary Fireplaces Only: Yes
Appliance Dimensions
Width: 28 3/8″
Height: 25 1/8″
Depth: 23 1/8″
Hearth Requirements
Insert At Flush Depth: 16″ Of Ember Protection If Hearth Is Raised More Than 5″
Insert At Extended Depth (2″ or 4″): 18″ or 20″ Of Ember Protection If Hearth Is Raised More Than 5″
Insert At Flush Depth: 23″ Of Thermal Protection If Hearth Is Raised 5″ Or Less
Insert At Extended Depth (2″ or 4″): 25″ or 27″ Of Thermal Protection If Hearth Is Raised 5″ Or Less
Surround Sizes
Cast Iron Faceplate: 36 1/8″ Width X 25 1/8″ Height
Regular Backing Plate: 44″ Width X 29″ Height
Oversized Backing Plate: 50″ Width x 32″ Height
Mantle Clearances
Clearance Required: 46 1/2″ Hearth To Mantle
Minimum Fireplace Opening
Width: 28 7/8″
Height: 23 3/8″
Depth: 19 5/8″