| 摘要 |
<p>The multi-storey building, gas fired open hearth units includes supply ventilators (7, 8) and combustion air passages (6, 6a) for combustion space of open hearths (2, 2a). Air passages (6, 6a) have branches (17, 17a) to maintain downward flow air curtains (18, 18a) for open front of hearths. Open hearths (2, 2a) installed in living rooms (1, 1a) have chimneys for exhaust gas ducts (3, 3a) with common roof unit (4) and gas discharge ventilator (5). Each hearth has air supply duct (6, 6a). Air is supplied by ventilators (7 or 8). Unit further includes air suction grills (12, 12a) and discharge ventilator (13).</p> |
