Built to withstand the harshest winter conditions, the Osburn 3500 is a must-have for any spacious home. With low emissions of just 1.6 g/h, this wood stove features user-friendly, non-catalytic technology that enhances efficiency while reducing fuel consumption. Its large firebox accommodates up to 50 lbs of cordwood, while the included blower, thermodisc, and airmate ensure optimal heat distribution for maximum comfort.
Required Accessories: (You will need to choose ONE to complete your unit)
OB-OA10163 - Black Door Overlay
OB-OA10164 - Brushed Nickel Door Overlay
Options:
OB-AC01281 - Rigid Firescreen
OB-AC01336 - 5" Diameter Fresh Air Intake Kit for Wood Stove on Pedestal
OB-AC01349 - 5" Diameter Fresh Air Intake Register with Airtight Damper
OB-AC02090 - 5" Diameter x 4' Insulated Flex Pipe for Fresh Air Intake
OB-OA10166 - Glass Ash Lip
General features
Approved for alcove installation: Yes
Chimney diameter : 6"
Height x Width x Depth - Overall: 34 3/4" x 28 7/8" x 33 1/2"
Average particulate emissions rate: 1.6 g/h
Maximum log length: 22"
Approved for a mobile home installation : Yes
Shipping Weight: 549 lb (249kg)
Recommended heating area -ft²: 1000 - 2700
Combustion technology: Non-catalytic
Maximum burn time: 10h
Blower Included: Yes
Overall firebox volume-ft³: 3.5
High-efficiency certified appliance: Yes, EPA 2020 approved
Log positioning: Loading over width
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
Warranty: Limited lifetime
Minimum clearances to combustibles*
(Data expressed in inches. 1 inch = 25.4 mm)
United-States
Single wall pipe
Clearance – back wall 13"
Clearance - corner 7 1/4"
Clearance – side wall 14"
Clearance – top (measured from the platform on which the appliance is installed)** 84"
Double wall pipe
Clearance – back wall 6"
Clearance - corner 7"
Clearance – side wall 14"
Clearance – top (measured from the platform on which the appliance is installed)** 84"
Canada
Single wall pipe
Clearance – back wall 13 1/4"
Clearance - corner 7 1/4"
Clearance – side wall 14"
Clearance – top (measured from the platform on which the appliance is installed)** 84"
Clearance – minimum floor protection in front of the appliance 18"
Double wall pipe
Clearance – back wall 6"
Clearance - corner 7"
Clearance – side wall 14"
Clearance – top (measured from the platform on which the appliance is installed)** 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.
Door type: Single, glass with cast iron frame
Glass type: Ceramic glass
Glass surface – dimensions (Width X Height): 18 7/8" x 11 3/4"
Glass air-wash system: Yes
Premium quality blower included (CFM): 130
Overall dimension (Height): 34 3/4''
Overall dimension (Width): 28 7/8''
Overall dimension (Depth): 33 1/2''
Door opening – dimension (Height): 9 7/8"
Door opening - dimension (Width): 19"
Firebox – dimension (Height): 12 7/8"
Firebox – dimension (Width): 22 7/8"
Firebox – dimension (Depth): 20 1/8"
Firebox lined with refractory bricks for better heat distribution: Yes
Stainless-steel secondary-air system improving gas combustion: Yes
Model: Pedestal
Steel thickness – body: 3/16"
Steel thickness - top: 5/16"
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)
Appliance performance (1)
Fuel Type: Dry cordwood (16" recommended)
Recommended Heating Area ft² *: 1000 - 2700 square foot
Overall Firebox Volume ft³: 3.5
EPA loading volume-ft³ : 2.88
Maximum burn time*: 10h
Maximum Heat Output -dry cordwood (2): 110,000 BTU/h (32.2 kW)
Overall heat output rate < (2) (3): 17,200 BTU/h (5.0 kW) to 57,800 BTU/h (16.9 kW)
Average overall efficiency (dry cordwood) (3) : 71% (HHV) (4) 76 % (LHV) (5)
Optimum overall efficiency (6) (7) : 77%
Optimum heat transfer efficiency (8): 75%
Average particulate emissions rate (9) : 1.6 g/h
Average CO (10) : 73 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.
(*) 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.
(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.
- Maximum Recommended Heating Area in Square Feet by Climate Zone
- Osburn 3500 Installation and Operation Manual
- Osburn 3500 Wood Stove Safety Notifications & General Info
- Osburn 3500 Dimensions
- 5" Dia. Fresh Air Intake Register w/ Airtight Damper Manual
- Osburn Wood Heating Warranty
- Osburn Accessories & Parts Warranty
- Warranty Registration
- 5" Dia. Fresh Air Intake Kit for Wood Stove on Pedestal Manual
