| 摘要 |
<p>The invention relates to a heating device comprising at least one heat source (1), which can be activated by a combustion process, and an exhaust-gas line (2), as well as to a ventilation device comprising a fresh-air line (3) and an exhaust-air line (5). The heating and ventilation devices are combined to form a unit. The exhaust-gas line (2) and the fresh-air line (3) form a heat exchanger configured as a system of parallel channels (7) in which the air flows can be guided in opposite directions. The exhaust-air line (5) feeds into the exhaust-gas line (2) so that the ventilation function can be maintained fully even outside the heating season. During the heating season the heat source (1) is supplied directly with used ambient air (25).</p> |
