Water heating system including recycle loop

Details Water heating system including recycle loop Water heating system including recycle loop

1976-01-15

1977-07-26

Wayner, William E.

Liquid heaters and vaporizers

Subsidiary

122421, 137563, 165DIG2, F22B 3300

Patent

active

040375676

ABSTRACT:
A water heating system includes a boiler which is connected with a source of water supply for receiving water under pressure. An exhaust flue is connected to the boiler for the discharge of gaseous products of combustion. A pair of concentrically arranged coils is positioned within the exhaust flue and is connected with the conduit feeding water to the boiler. A recycle loop is thus provided for withdrawing a minor portion of the water being fed to the boiler and for recycling same at a higher temperature to the feed conduit. The water circulates within the loop by natural connection.

REFERENCES:
patent: 447330 (1891-03-01), King
patent: 1107534 (1914-08-01), Lovekin
patent: 1458876 (1923-06-01), Confer
patent: 2038982 (1936-04-01), Broderick
patent: 2143287 (1939-01-01), Smith
patent: 2189749 (1940-02-01), Windheim et al.
patent: 2521462 (1950-09-01), Kinzelmann
patent: 3413969 (1968-12-01), Whittell, Jr.

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