| 摘要 |
This disclosure relates to a heating system for a building having a chimney, which heating system incorporates a heat collecting recovery unit set atop the chimney, an underground reservoir, a circulating pump, and an exchanger disposed to reject heat to the conditioned space within the building, to serve in combination to heat the building with energy which had heretofore been wasted, so that the energy consumption rate required for heating can be reduced.
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