Device for minimizing hot water heat loss in a water heater

Details Device for minimizing hot water heat loss in a water heater Device for minimizing hot water heat loss in a water heater

1984-12-24

1986-04-01

Favors, Edward G.

Stoves and furnaces

Liquid heater

Boiler receiving hot liquid or steam from stove or furnace

122 13R, 137845, F24H 100

Patent

active

045791040

ABSTRACT:
A device for minimizing hot water heat loss in a water heater through service fittings during standby periods. The inlet and/or outlet service fittings are provided with an internal sleeve having at least one flap that is integrally hinged to the sleeve. In a no-flow standby condition, the flap extends transversely across the sleeve to close off the fitting and prevent hot water heat loss by convection. During periods of water flow, the flap is pivoted to an open condition to permit water flow through the fitting with minimum restriction.

REFERENCES:
patent: 1991557 (1935-02-01), Johnson
patent: 3200571 (1965-08-01), Shufflebotham
patent: 3701560 (1972-10-01), Emmerson
patent: 3750710 (1973-08-01), Hayner
patent: 4286573 (1981-09-01), Nickel

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