| 摘要 |
Heating boiler for production of hot water for a central heating system and/or for production of hot domestic water, which is designed above the furnace space as a double-walled tank or housing, with an open inner space, the double-walled bottom of which forms the separation in relation to the furnace space, the double-walled side walls and the double-walled front and/or rear wall of which receive, in the cavities formed by them, the waste gas flues adjoining the furnace space, the circulating water of the heating system being guided at least in the bottom cavity. <IMAGE>
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