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A Catalytic Stove has a special catalytic combustor through which the smoke passes before it goes up the chimney. This cools the temperature of the smoke. At the same time turbulant air is added to the smoke via secondary air ports and baffles, which adds the oxygen needed to burn additional gases and particulates to prevent these from polluting the environment. Non-Catalytic stoves move the air within the firebox using specially designed air tubes. Primary air enters the firebox from the bottem of the stove while secondary air is introduced above the fuel through the air tubes. The gas by-products of the combustion are channeled in an "S" pattern over super-heated steel or masonry baffles which help ignite the gases before they escape into the atmosphere as pollutants.
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