Water heater secondary control device

Details Water heater secondary control device Water heater secondary control device

1985-09-23

1987-08-04

Wayner, William E.

Automatic temperature and humidity regulation

Closed fluid heaters

Top burner control

126374, 219334, F23N 108

Patent

active

046840613

ABSTRACT:
A water heater secondary control device which terminates the flow of gas to the heater thermostat when water has not been withdrawn from the tank for a period of time. The secondary control device includes a temperature sensor attached directly to the outside of the cold water inlet pipe and a tube to be attached to the heater tank pilot line to provide a continuous pilot light. The secondary control device is inserted between the natural gas pipe inlet and the heater thermostat and prevents flow of gas to the burner through the thermostat when the temperature of the water in the cold water inlet is above a predetermined threshold.

REFERENCES:
patent: 2806652 (1957-09-01), Arden et al.
patent: 3172601 (1965-03-01), Caparone
patent: 3272432 (1966-09-01), Davidson
patent: 3367571 (1968-02-01), Wantz et al.

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