(under subclass 350) Devices in which the flow of fluid fuel to the burner is automatically cut off when the temperature of the water reaches a certain limit. The device ordinarily must be reset by hand.
SEE OR SEARCH THIS CLASS, SUBCLASS:
374, for automatic control of the heating of a liquid containing vessel.
SEE OR SEARCH CLASS
122, Liquid Heaters and Vaporizers,
448.1+, for automatic control of fluid fuel and water in boilers.
236, Automatic Temperature and Humidity Regulation, 20+, for devices for controlling the temperature of a heated fluid.
