Liquid heaters and vaporizers – Automatic control of fluid fuel and water – Once through
Patent
1989-01-25
1990-05-08
Favors, Edward G.
Liquid heaters and vaporizers
Automatic control of fluid fuel and water
Once through
126351, 236 14, 237 19, F22B 3742
Patent
active
049228617
ABSTRACT:
A multiple purpose instantaneous gas water heater comprises a combination of a larger combustion capacity type first burner with a smaller combustion capacity type second burner. Each of the burners can be controlled by a proportional combustion control method and/or an intermittent combustion control method. It is possible to combine these functions within a microcomputer system so as to use each or both burners selectively, or both together, so that it is possible to select water from a wide range of hot water temperatures or to select a target temperature.
REFERENCES:
patent: 3887325 (1975-06-01), Finger et al.
patent: 4184457 (1980-01-01), Trutter et al.
patent: 4429682 (1984-02-01), Huang
patent: 4501261 (1985-02-01), Tsutsui et al.
patent: 4505253 (1985-03-01), Mizuno et al.
patent: 4627416 (1986-12-01), Ito et al.
Hayashi Keiji
Kawaguchi Hideki
Kayano Masahiro
Kobayashi Hiroshi
Makita Atsuo
Favors Edward G.
Toto Ltd.
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