Heating systems – Automatic control – Water
Patent
1994-06-21
1995-07-18
Tapolcai, William E.
Heating systems
Automatic control
Water
237 19, 392454, 392458, F24D 308
Patent
active
054333792
ABSTRACT:
A dual tank water heating system has an exterior tank which surrounds an interior tank. Water in the exterior tank is maintained at a prescribed temperature by heating elements located beneath the outer tank. Water in the interior tank is heated by water in the exterior tank and, when necessary, may be heated by a secondary heating element located beneath the interior tank. Water in the exterior tank may be used for general residential and commercial purposes and water in the interior tank is pumped through radiators for hydronic heating. Under moderate weather conditions, all heat is provided to the radiators through water in the interior tank which has been heated by water in the exterior tank. Under particularly cold circumstances, the secondary heating element is used to boost the heating ability of the system.
REFERENCES:
patent: 2299122 (1942-10-01), Battin
patent: 3580224 (1971-05-01), Bois-Colombes
patent: 3709198 (1973-01-01), Williams
patent: 4242569 (1980-12-01), Kayser
patent: 4632180 (1986-12-01), Lauderdale
patent: 4664096 (1987-05-01), Narang
patent: 4993402 (1991-02-01), Ripka
Instruction Manual of ITT Bell & Gossett, entitled "Reducing Valves. Installation, Operating and Service Instructions", V55999, Revision 1, (1992).
Instruction Manual of Amtrol Inc., "Installation and Operation Instructions--The Fill-Trol Unit", Form 109-1 (Undated).
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