| 摘要 |
An open fireplace for living quarters embodying a firebox, rear wall and flue or chimney as well as an air guiding system accommodated in the walls for entrapping or catching fresh air at a catch location arranged externally of the room and for heating this fresh air in at least one downdraft channel exposed to the thermal action of the firebox, the air infeed location of which is disposed at a higher location than its air outfeed location. At the air outfeed location of the at least one downdraft channel there is provided at least one updraft channel having an air outfeed location which opens into the room or the like.
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