Getting close to 2 seasons with the tundra . First year might have been a fluke the second year only got better in saving me so much work . I know the last 2 winter have been wimpy ,but we did have a few zero nights . The tundra handle it all with ease with a lot less work . Here was the benefits I burned just a little half the wood than the old wood furnace a cake up chimney is now not a issue now . Work smart not hard .