Combined water heater and heat exchanger

Details Combined water heater and heat exchanger Combined water heater and heat exchanger

1993-06-29

1994-12-13

Davis, Jr., Albert W.

Heat exchange

With leakage collector

237 19, 122 14, 122 17, 165140, F24D 308, F28F 1100

Patent

active

053721853

ABSTRACT:
A system for heating two independent water supplies having a water storage tank adapted to contain a first, potable water supply and a coiled heat exchange tube mounted within the tank to contain and conduct a second, non-potable water supply. The tank has a top, bottom, wall, and flue communicating between the top and bottom. The tube is in communication with the exterior of the tank and with a circulatory space heating system. The tube has a double wall to protect against the mixing of the potable and non-potable water supplies, and the ends of the tube terminate at the surface of the water storage tank at a dielectric fitting which maintains electrical isolation between dissimilar metals otherwise exposed to the water.

REFERENCES:
patent: 2303197 (1942-11-01), Canfield
patent: 4426037 (1984-01-01), Bernstein
patent: 5228413 (1993-07-01), Tam

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