Steve Slatter | Elm stove with "U" shaped air tubes, and wild secondary flames @slatterbench70 | Uploaded January 2010 | Updated October 2024, 1 hour ago.
After many variations of air tubes, I have one I really like. The air has about 30" of tube to heat up before being released into the firebox to combine with the oxygen starved flue gases. Two tubes, right and left, under the baffle provide air of 1000 degrees F to allow the smoke to burn more completely before going up the chimney. This configuration lowers the stack temp and transfers more of the heat to the stove and into the room instead of sending it up the chimney. Since making this change in tubes I have not seen the stack temp go over 400 degrees on the surface of the first section of single wall pipe. The stove efficiency is increased as a result. This test stove was built by Vermont Iron Stove Works LLC. You can learn more about the stoves and history by going to www.vermontironstove.com. thanks for watching!
After many variations of air tubes, I have one I really like. The air has about 30" of tube to heat up before being released into the firebox to combine with the oxygen starved flue gases. Two tubes, right and left, under the baffle provide air of 1000 degrees F to allow the smoke to burn more completely before going up the chimney. This configuration lowers the stack temp and transfers more of the heat to the stove and into the room instead of sending it up the chimney. Since making this change in tubes I have not seen the stack temp go over 400 degrees on the surface of the first section of single wall pipe. The stove efficiency is increased as a result. This test stove was built by Vermont Iron Stove Works LLC. You can learn more about the stoves and history by going to www.vermontironstove.com. thanks for watching!
