Hybrid water heater

Details Hybrid water heater Hybrid water heater

2006-03-28

2006-03-28

Campbell, Thor S. (Department: 3742)

Electric resistance heating devices

Heating devices

Continuous flow type fluid heater

C392S466000, C429S010000

Reexamination Certificate

active

07020387

ABSTRACT:
A tankless water heater powered by a fuel cell. In preferred embodiments, a fuel cell powered water heater in which the fuel cell is electrically connected to the electrical system of the building in which the water heater is installed as well as to the public electrical power grid for providing emergency power to the building and/or power to the public electrical power grid, respectively. In alternative preferred embodiments, a tankless, solid oxide fuel cell powered water heater which utilizes heat from exhaust gases to heat input oxidant gases and, optionally, can be cooled by routing excess heat to the exterior of the building on hot days.

REFERENCES:
patent: 5216743 (1993-06-01), Seitz
patent: 6418275 (2002-07-01), Yang
patent: 6465118 (2002-10-01), Dickman et al.

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