| 摘要 |
<p>The chimney has a hearth (1) a hood (2) and a connecting duct (3) which is placed in communication with an exhaust duct for fumes (4). It has an envelope (7) defining the interior faces and further envelopes 98) to prevent exceeding a maximum temperature on the exterior envelope (7) to allow the positioning of the chimney against all types of wall. The envelopes to prevent exceeding a set temperature can include three envelopes (7.9.10) defining at least two ventilation circuits (11,12).</p> |
