| 摘要 |
<p>PURPOSE:To prevent the generation of dewing of combustion flue gas by a method wherein a coil type heat exchanging member is arranged at the outside of an inner tube through which the combustion exhaust gas from a stove passes while an intermediate tube is provided between an outer tube, surrounding the outside of the member, and said heat exchanging member. CONSTITUTION:The coil type heat exchanging member 3 is arranged at the outside of the inner tube 2, through which the combustion exhaust gas from a stove passes, and a member 3 is surrounded by an outer tube 4 while an intermediate tube 5 is arranged between the member 3 and the outer tube 4. As a result, the temperature of combustion exhaust gas will never be lowered largely by the contact of a combustion flue gas with the outer tube and accordingly it becomes hard to generate dewing in the gas whereby a contamination in a room, caused by the dewing, will never be generated.</p> |
