Heating systems – Combined with water heater
Patent
1989-02-09
1990-08-07
Bennet, Henry A.
Heating systems
Combined with water heater
165143, F24D 308
Patent
active
049460986
ABSTRACT:
A central heating installation provided with a hot tap water circuit for domestic usage includes a heating apparatus having an enclosure the inner portion of which is provided with a burner, notably a gas burner, and on which is possibly wound or a heating circuit duct extending thereafter through a fin assembly situated in the upper portion of the enclosure, along the path of travel of the hot gases, the heating circuit, when extending through the fin assembly, being provided in the shape of a plurality of flattened tubes connected to one another by elbows and the hot tap water circuit being provided in the form of a tube having the shape of a hairpin or of a pipe coil and placed inside the flattened tubes where they extend through the fin assembly. The sanitary hot tap water circuit tubes, placed in the shape of hairpins or coil tubes inside the heating water circuit flattened tubes, are not in contact with the latter, and the dimensions of the flattened tubes and of hairpin tubes are chosen in such manner that the volume of water contained between the flattened tubes and the turns of the hairpin-shaped tubes is reduced to a minimum.
REFERENCES:
patent: 2452391 (1948-10-01), O'Sullivan et al.
Bennet Henry A.
E. L. M. Leblanc
Sollecito John
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