The present invention relates to an exchanger apparatus (1) for supplying electricity and heat, comprising a radiator element (2) able to irradiate energy as a function of an operating temperature thereof; an electronic device (3) designed to produce output electricity from the energy irradiated by the element, thereby dissipating heat; and a heat exchanger (4) designed to absorb the heat dissipated by the electronic device (3), thereby increasing the temperature of an output fluid.

An adjustable temperature treatment assembly includes a top seat and a bottom seat respectively connected to the wall in a shower stall. Two guided rods are connected between the top seat and the bottom seat. An up-and-down unit includes a threaded rod connected between the top seat and the bottom seat, a movable seat connected to the threaded rod, a rotary member, a holding member and a first driving member. The holding member is connected to the rotary member. A warm-hot water unit includes a heating box, and a shower head which is connected to a holding member. A control unit is electrically connected to the first driving member to spin the threaded rod to move the movable seat up and down. A driving member is controlled by the control unit to swing the rotary member together with the shower head left and right.

A circuit for generating electrical energy is disclosed. The circuit uses a pulse generator in combination with a tube having a cavity therein. The tube can have material therein, such as solid material or fluid passing therethrough. A thyristor or other negative resistance is in series with the tube to increase a change of voltage with respect to time. A resultant energy applied to a load is larger than the energy supplied by the pulse generator due to the absorption of external energy by the tube.

According to the present invention, disclosed is a pipe fluid heat exchange flat pipe, which has a cross section having a width direction size that is larger than the size in the height direction thereof, extends in a longitudinal direction, and has a plurality of flat parts and curved parts that are alternately formed, wherein a plurality of lower guides protruding from the inner lower surface of the flat pipe toward the upper side thereof and upper guides protruding from the inner upper surface of the flat pipe toward the lower side thereof are alternately provided in the width direction of the flat pipe, and either the lower guide or the upper guide has an overlapping part overlapped with the other from either of the adjacent lower guide or upper guide in the height direction of the flat pipe.

A variable power water heater is disclosed. In embodiments, the variable power water heater includes a water tank, a heating element, a power supply circuit, a switch, and a controller. The heating element may be disposed within or coupled to the water tank. The power supply circuit may be configured to generate a power signal for the heating element. The switch may be configured to couple the power supply circuit to the heating element, and the controller may be configured to toggle the switch according to a pulse width modulation (PWM) scheme to control a duty cycle of the power signal transmitted from the power supply circuit to the heating element.

A heater system includes a heater bundle having a plurality of heater assemblies and a plurality of power conductors. More than one of the heater assemblies includes a plurality of heater units, and more than one of the heater units defines at least one independently controlled heating zone. The plurality of power conductors are electrically connected to the independently controlled heating zones. The heater system further includes means for determining temperature, and a power supply device including a controller configured to modulate power to the independently controlled heating zones through the power conductors based on the determined temperature to provide a desired power output along a length of more than one of the heater assemblies.

A hot water tank for a bidet includes a tank main body in which a space for accommodating water is formed and an inclined surface having a portion of an upper side inclined downward is formed. The hot water tank also includes a heating unit inserted into and positioned in the tank main body and a bimetal positioned on the inclined surface.

A sensor is driven at a first heating power value. The sensor generates a sensing signal that is indicative of a sensed entity. A possible onset of a sensor contamination condition is detected as a function of the sensing signal generated by the sensor. If such detecting fails to indicate onset of a sensor contamination condition, the sensor continues to be driven at the first heating power value. However, if such detecting indicates onset of a sensor contamination condition, a protection mode is activated. In the protection mode, the sensor is driven at a second heating power value for a protection interval, where the second heating power value is lower than the first heating power value. Furthermore, the operation may refrain from supplying power to the sensor for a further protection interval, wherein the further protection interval is longer than the protection interval.

A water heater including an inflow terminal for connecting a tankless water heater to a cold water supply and an outflow terminal for connecting the tankless water heater to a tap. A fluid channel proves a fluid connection from the inflow terminal to the outflow terminal. A heat element arrangement is arranged at or within at least a section of the fluid channel for transferring heat to fluid present within the fluid channel. An electronic controller is configured to control a heating power provided to the heat element arrangement. A flow sensor is arranged at or within the fluid channel downstream the heat element arrangement. The electronic controller is further configured to detect the presence of air bubbles within the fluid channel based on a change of a flow signal provided by the flow sensor and to adapt the heating power provided to the heat element arrangement in reaction to the determination of air bubbles.

A sensor is driven at a first heating power value. The sensor generates a sensing signal that is indicative of a sensed entity. A possible onset of a sensor contamination condition is detected as a function of the sensing signal generated by the sensor. If such detecting fails to indicate onset of a sensor contamination condition, the sensor continues to be driven at the first heating power value. However, if such detecting indicates onset of a sensor contamination condition, a protection mode is activated. In the protection mode, the sensor is driven at a second heating power value for a protection interval, where the second heating power value is lower than the first heating power value. Furthermore, the operation may refrain from supplying power to the sensor for a further protection interval, wherein the further protection interval is longer than the protection interval.