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!

The Oburn 3500-I Extra Large Insert qualifies for a biomass stove tax credit! What does that mean? How do you take advantage of this credit? Please see our blog explaining the process.

Features:

• Non-catalytic design
• Heavy duty cast iron door and cast iron door overlay options
• Air-wash system to help keep viewing glass cleaner
• 144 CFM blower included
• Ceramic glass
• Firebox lined with refractory bricks for better heat distribution
• Stainless-steel secondary-air system improving gas combustion
• Limited lifetime warranty
• 2020 EPA approved high-efficiency certified appliance

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

Specifications:

• Heating coverage area: ~ 1,000 to 2,700 ft²
• Maximum heat output: 110,000 BTU/h
• Firebox / combustion chamber overall volume: ~ 3.5 cu ft
• EPA loading volume: ~ 2.84 cu ft
• Maximum burn time: up to ~ 10 hours
• Minimum Fireplace Opening: 26 1/4" H  x  31" W  x  18 3/8" D
• Overall dimensions: 24-7/8″ H × 30-3/8″ W × 29″ D
• Door Opening: 9 7/8" H x 19" W
• Interior Firebox Dimensions: 12 7/8" H  x  22 7/8" W  x  20 1/8" D
• Glass Surface Dimensions: 18 7/8" W  x  11 3/4" H
• 540lbs