| 摘要 |
The present invention relates to flue-mounted power heat recuperators designed to transfer heat from flue gas through metal to air. In this invention a heat reflecting flexible sleeve encloses a metal flue of low emissivity, forming a "tube-within-a-tube" heat exchanger, and heat is reclaimed directly from the outside surface of the said flue by means of counterflow or parallel-flow forced air convection. The above arrangement provides air of higher temperature, and when combined with a central home-heating forced air furnace it increases temperature of supply air and enhances efficiency of the whole central home-heating system. |
