Osburn Freestanding, 900 Wood Stove


was US$1,049.00

now US$837.56



Osburn is proud to present its 900 model, the smallest wood stove in the Osburn range. The 900 still incorporates the features and the technology of the larger Osburn stoves. This EPA stove packs a lot of heat with an output of up to 40,000BTU/hr. This sturdy little heater will keep you warm and toasty.

In spite of its size, the Osburn 900 takes an adequate log length of 17", making it an admired option in the small stove market.



Fuel type: Dry cordwood
Recommended heating area (sq.ft.): 250 - 1,000
Firebox volume (cu. ft.): 1.3
Maximum burn time: 5 h
Maximum heat output (dry cordwood): 40,000 BTU/h (11.7 kW)
Overall heat output rate (min. to max.): 10,800 BTU/h (3.2 kW) to 22,600 BTU/h (6.6 kW)
Average overall efficiency (EPA cribs / Douglas fir):

68.0 % (HHV) 73.5 % (LHV)

Average overall efficiency (dry cordwood):

N.A. (HHV) N.A. (LHV)

Optimum efficiency: 78.2 %
Average particulate emissions rate: 4.0 g/h
Average CO: 130.5 g/h


Values are as measured per test method, except for the recommended heating area, firebox volume, maximum burn time and maximum heat output.

Recommended heating area and maximum burn time may vary subject to location in home, chimney draft,heat loss factors, climate, fuel type and other variables. The recommended heated area for a given appliance is defined by the manufacturer as its capacity to maintain a minimum acceptable temperature in the designated area in case of a power failure.

The maximum heat output (dry cordwood) is based on a loading density varying between 15 lb/ft³ and 20 lb/ft³. Other performances are based on a fuel load prescribed by the standard. The specified loading density varies between 7 lb/ft³ and 12 lb/ft³. The moisture content is between 19% and 25%.

(Average Overall Efficieny) As measured per CSA B415.1-10 stack loss method.

(HHV) Higher Heating Value of the fuel.

(LHV) Lower Heating Value of the fuel.

Performances based on a fuel load prescribed by the standard at 7 lb/ft³ and with a moisture content between 19% and 25%.

Optimum overall efficiency at a specific burn rate (LHV).

This appliance is officially tested and certified by an independent agency.





Automatic or manual adjustment of combustion air supply: Yes
Maximum log length: 17''
Log positioning: Over width
Chimney diameter: 6"
Flue outlet diameter: 6''
Minimum chimney height (feet): 12'
Baffle type: Stainless steel
Approved for an alcove installation: Yes
Approved for a mobile home installation: No
Shipping Weight: 273 lb (124 kg)
Door type: Single, glass with cast iron frame
Glass type: Ceramic glass
Glass surface – dimensions (Width X Height): 13 3/8'' X 7 3/4''
Glass air-wash system: Yes
Overall dimension (Height): 25 3/4''
Overall dimension (Width): 22 7/8''
Overall dimension (Depth): 21 7/8''
Door opening – dimension (Height): 7 5/8''
Door opening - dimension (Width): 15''
Firebox – dimension (Height): 9 5/8''
Firebox – dimension (Width): 18 3/8''
Firebox – dimension (Depth): 12 1/2''
Firebox lined with refractory bricks for better heat distribution: Yes
Stainless-steel secondary-air system improving gas combustion: Yes
Model: Legs
Adjustable threaded legs: Yes
Steel thickness – body: 3/16"
Steel thickness – top: 1/4"
Centre line of flue outlet to the side: 11 3/8"
Centre line of flue outlet to the back: 5 3/4"
USA standard (emissions): EPA Method 28
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                 USA

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Clearance – back wall 15 1/4" 10" 15" 10"
Clearance – side wall 18" 18" 18" 18"
Clearance – placed in a corner 10" 10" 10" 10"
Clearance – top (measured from the platform on which the appliance is installed)** 84'' 84'' 84'' 84''

* The information given on the certification label affixed to the appliance always overrides the information published in any other media (owner's manual, catalogues, flyers, magazines and/or web sites).

** Some appliances have been tested with a low ceiling. Before setting up your unit, refer to the installation manual.




Manuals: Operation and Installation

Owner's Manual Osburn 900 Wood Stove

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