The Osburn 3500-I insert fireplace is designed to provide efficient and long-lasting heat to spacious living areas. Its firebox can accommodate dry wood logs up to 16 inches in length, ensuring optimal combustion with a maximum heat output of 110,000 BTU/h (32.2 kW).

Its overall efficiency reaches 71% (GCV) or 76% (LCV), guaranteeing economical fuel use. Equipped with a fan, a thermodisc and a top heat exchanger, it ensures uniform heat distribution .

Its non-catalytic design reduces particulate emissions to 1.6 g/h, meeting stringent environmental standards. With dimensions of 34 3/4 inches high, 28 7/8 inches wide, and 33 1/2 inches deep, it blends seamlessly into a variety of interiors.

This model is also approved for installation in a mobile home, offering additional installation flexibility.