A heat absorption and dissipation sheet is arranged on the outer wall of a chimney and shielded by using the sheet iron and other material; thus, an upper part heating chamber is formed.
在烟筒的外壁装置吸散热片，再用铁皮或其它材料屏蔽起来，构成上部加热腔。
A heat absorption and dissipation sheet is arranged on the outer wall of a chimney and shielded by using the sheet iron and other material; thus, an upper part heating chamber is formed.
在烟筒的外壁装置吸散热片，再用铁皮或其它材料屏蔽起来，构成上部加热腔。
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