Skip to product information
1 of 9

SKU:OB03510

Osburn 3500 Wood Insert with Heat Activated Variable Speed Blower (130 CFM)

Osburn 3500 Wood Insert with Heat Activated Variable Speed Blower (130 CFM)

Regular price $3,379.00
Regular price Sale price $3,379.00
Sale Sold out

Door Overlay - Required

-- Please Select --

No, Thank You

Faceplate - Required

-- Please Select --

No, Thank You

Faceplate Trim Kit - Required

-- Please Select --

No, Thank You

Options/Accessories

  • Free Shipping on Orders Over $300
  • Same-Day Order Processing
  • Easy Monthly Installments Starting at 0% APR*
Got a question?
• Text or call 888-992-1556
• Email support@usfireplacestore.com
• Start a live chat

Our team is available to serve you 8:00 AM - 11:59 PM ET, 7 days a week.

Osburn products are made to order. The estimated lead time is 12-18 weeks.

Overview

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!

Required to complete the woodstove:

  • Faceplate
  • Faceplate Trim
  • Door Overlay
      Appliance Performance
      Fuel type : Dry cordwood
      Recommended heating area-ft² : (*) 1,000 - 2,700
      Overall firebox volume : 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 (EPA cribs/Douglas fir) : (3) N.A. (HHV) (4) N.A. (LHV) (5)
      Average overall efficiency (dry cordwood) : (3) 71 % (HHV) (4) 76 % (LHV) (5)
      Optimum efficiency : (6) (7) 77 %
      Average particulate emissions rate : (8) 1.32 g/h
      Average CO : (9) 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. 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%.

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

      (9) Carbon monoxide.

      General Features
      Combustion technology Non-catalytic
      High-efficiency certified appliance Yes, EPA 2020 approved
      Maximum log length 22"
      Log positioning Loading over width
      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
      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 3/8"
      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 – top shelf to unit 27" 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.


      Configuration

      3500 Wood Insert with Large Faceplate, Brushed Nickel Faceplate Trims and Brushed Nickel Door Overlay

      3500 Wood Insert with Large Faceplate, Black Faceplate Trims, and Brushed Nickel Door Overlay

      3500 Wood Insert with Medium Faceplate, Brushed Nickel Faceplate Trims and Brushed Nickel Door Overlay

      3500 Wood Insert with Medium Faceplate, Black Faceplate Trims, and Brushed Nickel Door Overlay

      3500 Wood Insert with Large Faceplate, Brushed Nickel Faceplate Trims, and Black Door Overlay

      3500 Wood Insert with Large Faceplate, Black Faceplate Trims, and Black Door Overlay

      3500 Wood Insert with Medium Faceplate, Brushed Nickel Faceplate Trims and Black Door Overlay

      3500 Wood Insert with Medium Faceplate, Black Faceplate Trims, and Black Door Overlay

      *NOTE: Shown with required faceplate, faceplate trim, and door overlay (not included).. The faceplate, faceplate trim, and door overlay must be purchased to complete this unit.

      Options

      Click to see options

      5" Fresh Air Intake Kit

      --- recommended to reduce or eliminate negative pressure problems

      Offset Liner Adaptor

      --- allows your flexible liner to be offset to the rear of an insert outlet.

      Rigid Firescreen

      --- enhances crackle of your fire



      Accessories

      Click to see accessories

      Adhesives, Gaskets and Insulation

      High Temperature Red Silicone (300 ml - 10.1 fl.oz.)

      High Temperature Clear Silicone (300 ml - 10.1 fl.oz.)


      Metallic Black Stove Paint – 342g (12oz) Aerosol

      --- adheres well and dries quickly

      Metallic Black Stove Paint – 85g (3oz) Aerosol

      --- retains color well over time

      Maintenance Products

      Ash Vacuum Cleaner

      --- designed almost exclusively for ash collection

      6" Round Brush with Polypropylene Bristles (3/8" NPT)

      --- efficiently cleans chimneys and convenient loop for hanging

      Pull Ring (3/8" NPT)

      --- securely connects to brushes and give you that extra safety while you use your chimney rod

      5' Fibreglass Rod (3/8'' Npt)

      --- perfect rod for cleaning chimneys enabling you to install a number of accessories or extenders

      Kevlar Thread Wood Stove And Fireplace Gloves

      --- gloves are recommended for a safe and clean use with any type of wood-burning appliance.

      19" Kevlar Thread Sewn Fireplace Gloves

      --- cover the entire forearm to protect against heat sources

      Dry Cleaning Pad

      --- easily cleans the soot from glass without water

      Wood Appliance Glass Cleaner (500ml - 16.9fl.oz.)

      --- recommended for cleaning the glass of any type of wood-burning appliance

      Meters

      Digital Moisture Reader

      --- accurately measures moisture content in wood logs. Wood should be below 20% humidy content

      Fire Starters

      Sachet Pouches Fire Starter

      Wood and Paraffin Fire Starter Cubes

      --- safe, odorless, soot less, strong burning; can be stored indefinitely and does not dry out

      Fire Lighting Gel (500 ml - 16 fl.oz.)

      --- allows you to start wood, oil, and pellet fires quickly and easily



      Downloads:

      View full details
      Customer Reviews
      0.0 Based on 0 Reviews
      5 ★
      0% 
      0
      4 ★
      0% 
      0
      3 ★
      0% 
      0
      2 ★
      0% 
      0
      1 ★
      0% 
      0
      Write a Review Ask a Question

      Thank you for submitting a review!

      Your input is very much appreciated. Share it with your friends so they can enjoy it too!

      Filter Reviews:
      • Researched and ordered my fireplace from US FIreplace Store. Pricing was a fair value however, the customer service was EXCELLENT! I had an issue with the direct vent venting. I called US Fireplace and the correct items were sent out the next day AND Janessa stayed on top of my return authorization and sent me the permissions and documents I needed to return the incorrect item and no cost to me, including return shipping. Overall, I am a very satisfied customer and my fireplace looks and operates flawlessly. I am glad that I selected US FIreplace to source my direct vent fireplace. Thank you for the great service.

        Clay

        Monteagle, TN

      • I had placed an order, through Lowe's Home Improvement, for an Electric Firebox: Revillusion RBF42. Ordered 1st part of January. Was told I would have it in 3 weeks. When checking to see is it came in, was told it was delayed to 3/15. Was then told is was delayed until 4/25. Waited until 4/27 to check on it. Was then told it was now delayed until August. This firebox was going in a new Sun Room addition. I could not get my final inspection until the Firebox was installed. I went on line and googled for this same product. US Fireplace Store web site was given to me. This was on a Saturday. I call and reached a very nice man. Explain what I was look for. He checked and told me they had 30 of them in stock. I almost fell out of my chair. I clarified with him the product I was wanting. I ask how soon could I get it. He told me it would ship today. Again, was amazed. It arrived on the following Monday. What a pleasure and a relief working with US Fireplace Store and their employees. Exceed my expectations.

        Thomas W.

        Fort Mill, SC

      • Great prices, quick delivery and fast hassle free services on the issue I encountered. I had purchased an electric fireplace unit that would not fit into the existing fireplace space. With one email I was able to get the wrong fireplace refunded and picked up at my home at no extra cost and the new one I purchased and delivered free of charge. Great company.

        John P.

        Denvers, MA

      1 of 12
      • Live Chat Support

        No chatbots. Speak with a human. Average response time is 48 seconds.

      • Easy Returns

        Need to return the merchandise? We accept returns for 30 days from the date of delivery.

      • 7 Days/Week Service

        We're here to help on live chat, email & phone. 8:00 AM - 11:59 PM Eastern Time.

      • 100,000+ Products

        America's largest selection of hearth & heating products. Fireplaces, stoves, fire pits, heaters, log sets and more.

      • Pay Over Time

        0% APR is available for 3 and 12- month financing.* See if you prequalify today.

      • Staff Picks

        Check out the Staff Picks collection. See the top products selected by our team.