Heating systems – Air
Patent
1978-12-08
1981-01-06
Yeung, James C.
Heating systems
Air
126121, 126122, 237 55, 165154, 165DIG2, F24B 700
Patent
active
042431778
ABSTRACT:
A chimney heat capturing system comprises a chimney shell (10) having a relatively large chimney passage (20) and a flue liner (12) comprising a plurality of standardized individual liner units (28 b, c, d, and e) anchored in the chimney passage. The liner units are stacked on one another and are spaced from the chimney shell by anchor brackets (26). Each of the liner units (28 b, c, d, and e) includes outer and inner casings (30 and 32) separated by spacers for defining a heat capturing space between them. In one embodiment, each of the units is closed at its ends, and in another embodiment some of the adjacent units have open ends to communicate the heat capturing spaces of adjacent units and thereby form independent heat capturing spaces (54) defined by more than one unit. There are two ducts (40a-40b, 42a-42b, and 58-60) attached to the outer casings for each independent heat capturing space to communicate the respective heat capturing spaces with the interior of a building on which the chimney heat capturing system is constructed. Blower fans (62) move air from the building through the heat capturing spaces back into the building.
REFERENCES:
patent: 1361389 (1920-12-01), McLeod
patent: 1473422 (1923-11-01), Farquhar
patent: 1482289 (1924-01-01), Dodge
patent: 2274341 (1942-02-01), Mueller
patent: 2767702 (1956-10-01), Giwosky
patent: 4158439 (1979-06-01), Gibbs
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