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Osburn 3500 Extra Large Wood Insert

By: Osburn Wood Burning Stove Fireplace Products
SKU:
OB03510
$3,379.00
Condition:
New
Current Stock:
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Luxury Fire

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The Osburn 3500 wood insert combines power, efficiency and safety. With its amazing features and sober lines that give way to one of the largest glass surfaces in its category, this insert will blend perfectly with the architecture of your home. Its flawless design reveals all the Canadian know-how in terms of alternative heating and will quickly become the house favorite. No harsh winter can resist it! 

Because each house is unique, choose the door overlay, the faceplate and the trims that suit you!

Discover the additional qualities of the Osburn 3500 wood insert

 

APPLIANCE PERFORMANCE (1)

Fuel type : Dry cordwood (16" recommended)
Recommended heating area-ft² : () 1,000 - 2,700
Overall firebox volume-ft³ : 3.5
EPA loading volume-ft³ : 2.84
Maximum burn time : () 10 h
Maximum heat output-dry cordwood : (2) 110,000 BTU/h (32.2 kW)
Overall heat output rate < : (2) (3) 18,100 BTU/h (5.3 kW) to 49,500 BTU/h (14.5 kW)
Average overall efficiency (dry cordwood) : (3) 71 % (HHV) (4) 76 % (LHV) (5)
Optimum overall efficiency : (6) (7) 77 %
Optimum heat transfer efficiency : (8) 76 %
Average particulate emissions rate : (9) 1.32 g/h
Average CO : (10) 92 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.

GENERAL FEATURES

Combustion technology Non-catalytic
High-efficiency certified appliance Yes, EPA 2020 approved
Maximum log length 22"
Log positioning Loading over width and over depth
Chimney diameter 6"
Flue outlet diameter 6"
Type of chimney Liner - ULC-S635, CAN/ULC-S640, UL1777
Minimum chimney height (feet) 15'
Baffle type C-Cast or equivalent
Approved for a mobile home installation No
Shipping Weight 540 lb (245 kg)
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) 144
Overall dimension (Height) 24 7/8"
Overall dimension (Width) 30 3/8"
Overall dimension (Depth) 29"
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
Steel thickness – body 3/16"
Steel thickness – top 5/16"
Fireplace opening – minimum (Height) 26 1/4"
Fireplace opening – minimum (Width) 31"
Fireplace opening – minimum (Depth) 18 3/8"
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
Minimum clearances to combustibles*
(Data expressed in inches. 1 inch = 25.4 mm)
  Canada United-States
Clearance – top (measured from the platform on which the appliance is installed)** 84" 84"
Clearance – combustible side mantle to unit 9" 9"
Clearance – combustible top mantle to unit 27" 27"
Clearance – combustible side wall to unit 19" 19"
Clearance - from the top of the unit to the shelf 27"  
Clearance – from the top of the insert to the shelf   27"

* 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.

Install and Owners Manual

Dimensions

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