Hot water production appliances
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United States of America Patent
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-
Mar 20, 1990
Grant Date -
N/A
app pub date -
Jun 29, 1989
filing date -
Jul 5, 1988
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The invention concerns a single or double circuit hot water production applicance comprising, for the water, one or two nests of parallel vertical coaxial tubes (1) connecting together two rings (2,3) which are also coaxial and, for the combustive air admitted, an external jacket (7) with double wall and, finally, for the combustion gases, an annular intermediate sleeve (9) and a central discharge chimney (10, 11). The burner (14) fed with pressurized fuel gas (at 16) is disposed annularly between the upper ring (3) and the top of the chimney (11) and it is adapted so as to generate downwardly oriented flames. An inclined bottom (29) collects the condensates.
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