The Osburn 3500 wood insert offers a sleek and modern design, with stainless steel components for durability. The included Forever Flex liner kit makes installation easy and efficient. With a 1.32 g/h emissions rate and non-catalytic combustion technology, this insert provides a clean and efficient burn for recommended heating areas of 1,000-2,700 ft². The blower and 3.5 ft³ firebox volume add convenience and warmth to your home for up to 10 hours.