Name: Osburn 3500 Wood Insert
Brand: Osburn
SKU: OB03510
Availability: InStock

3500 Wood Insert

Warning : Wood-burning inserts must only be installed inside an existing masonry fireplace and never in a wooden or combustible structure.

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!

*Any installation must be done according to the data and drawings detailed in the owner’s manual.

95% of the last 20 product owners who have registered their warranty are satisfied with this product.

Specifications

SKU: OB03510

Fuel type	Dry cordwood (16″ recommended)
Recommended heating area-ft²	1,000 – 2,700
Overall firebox volume-ft³	3.5
EPA loading volume-ft³	2.88
Maximum burn time	10 h
Maximum heat output-dry cordwood	110,000 BTU/h (32.2 kW)
Overall heat output rate <	17,200 BTU/h (5.0 kW) to 57,800 BTU/h (16.9 kW)
Average overall efficiency (dry cordwood)	71 % (HHV)
Optimum overall efficiency	77 %
Optimum heat transfer efficiency	75 %
Average particulate emissions rate	1.6 g/h
Average CO	73 g/h

Manuals / Catalogs

Osburn 3500-I wood insert install & owner’s manual

Osburn 3500-I dimensions

2D Diagrams

Shipping / Freight / Return Info

Same-Day / 24 hour shipping

Same-Day/24 hour shipping - If we have the product in stock, we can ship
same day if ordered before 12pm Monday - Friday (CST).

Freight Claims Policy

Please follow these very important steps when it comes to Freight Items that are damaged or missing

Open and inspect the order while the delivery driver is present. If delivery driver does not provide sufficient time to do so, please notate the delivery receipt.

By signing the delivery receipt without noting any damage or missing items, you confirm that your order arrived complete and in excellent condition.

Record any damage or missing pieces directly on the delivery receipt.

Do not discard damaged item(s) or any original packaging. For severe damage, write “Refused due to damage” on the delivery receipt and contact us immediately.

Report any damage within two business days, including delivery details and photos showing the issue

Damaged item(s) must be returned within 30 days. Failure to return them will result in a charge to the original payment method.

Return Merchandise Authorization Policy

Please follow these very important steps when Returning Items. Contact our team.

Submit your return request within 30 days of delivery.

You will receive an email within 1-2 business days confirming whether your return request has been approved or denied.

Please also note that a 20% restocking fee may apply to approved returns

If approved, you will receive an itemized Return Authorization, return shipping labels (if requested), and detailed instructions within 1–2 business days

From the date this email is received, you will have 14 days to return the product.

Once our distributor receives and inspects the returned item(s), your refund will be issued within 1–2 weeks
Items returned outside of this process or time frame are not eligible for a refund.