OsburnWood InsertMid-range ($$)Part Number: OB03510
Wood Insert Specifications
- Installation Scenario
- Traditional Open Fireplace
- Heat Output
- Significant
- Front Width
- 31 in.
- Back Width
- 31 in.
- Opening Height
- 26.25 in.
- Depth
- 18.375 in.
About the Osburn 3500
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!
• 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
Common Questions
Catalytic or non-catalytic: which wood insert style is right for you?
The most important question is how long the insert keeps your house warm before you reload. Non-catalytic (tube-style) inserts deliver strong heat quickly with typical burns of 4 to 8 hours per load; catalytic models trade some immediacy for longer, steadier burns.
From our guide: What to Look for in a Wood Burning Fireplace Insert?
Why heat with wood at all?
Wood heating appliances heat where you live rather than wasting money heating the whole home, and wood warmth is the kind you can feel deep in your bones. If you have space to store and season firewood, wood burning can be a life-changing heating option.
From our guide: Our Favorite Wood Fireplace Inserts
What should you bring to the showroom?
Pictures are worth a thousand words: one up-close shot of your fireplace or stove location and one of the entire room. Preparation creates clarity, so you leave with the right unit for your home instead of a guess.
From our guide: What Info Should You Bring With You to a Fireplace Showroom?
Will the Osburn 3500 look right in your room?
Use the Visualize in Your Space button to upload a photo of your room and see this exact model rendered in it.
Serving Southeastern Pennsylvania
The Stove Shop installs and services fireplaces, stoves, and inserts from the Phoenixville, PA showroom, serving King of Prussia, Malvern, Mont Clare, Norristown, Oaks, Paoli, and towns across the region. See our full service radius.