A temperature control unit includes a fitting, a heating wire, a first temperature sensor, and a housing, which contains the first temperature sensor and portions of the fitting and the heating wire. The fitting includes a fluid inlet, a fluid outlet, a flow channel extending from the fluid inlet to the fluid outlet, and a passage extending through a wall of the fitting to the flow channel. The heating wire extends through the passage and into the flow channel. The first temperature sensor is secured to an external surface of the fitting opposite the flow channel and is electrically connected to the heating wire.

A dispenser includes: a tank; an inlet pipe connected to the tank and to supply liquid to the tank; a heater for heating liquid in the tank; an inverter printed circuit board for controlling the operation of the heater; a heat sink formed of a metal or other heat conductive material, and having a cavity; and a power semiconductor element electrically connected to the inverter printed circuit board to control power to the heater, and fixed to the heat sink to heat-exchange with liquid flowing in the cavity. The cavity of the heat sink may receive a section of the inlet pipe or may form a flow path to receive the fluid from the inlet pipe.

An electrode for the ohmic heating of a particulate liquid flowing therethrough having an inlet and an outlet that are fluidly connected and are arranged in such a way that there is a change of direction of 60°-120° between the inlet and the outlet. A cell for the ohmic heating of a particulate liquid flowing therethrough may have two such electrodes and a dielectric tube that fluidly connects the two electrodes. An apparatus for the ohmic heating of a particulate liquid flowing therethrough may have six such cells that are fluidly connected in series and are electrically connected to a triphasic power supply, so that the increase of temperature of the liquid at any cell is substantially the same.

Embodiments of the invention provide a pool heater including a housing, a first tankless heater, a second tankless heater, and a controller. The controller is configured to activate only the first tankless heater when a first condition is met, activate only the second tankless heater when a second condition is met, and activate the first and the second tankless heaters simultaneously when a third condition is met.

A washer liquid heating apparatus integrated into a reservoir may include a plate-type heater that may be installed in a hole of the reservoir to heat a washer liquid within the reservoir, a protect cover that may be assembled into the reservoir to surround the heater, and a fastening device for fixing the heater and the protect cover to the reservoir, wherein the plate-type heater may be fixed to be exposed to an inside of the reservoir through the hole such that a heating surface where heating may be performed heats the washer liquid within the reservoir.

An inline heater includes a heater core that includes a heat spreader assembly comprising a tubular heat spreader that extends axially along a longitudinal axis and that comprises an external surface. The heat spreader assembly includes a fluid inlet and a fluid outlet. At least one conduit extends helically about the longitudinal axis of the heat spreader between the fluid inlet and the fluid outlet to define a fluid heating flow path that fluidically connects the fluid inlet and the fluid outlet. The heat spreader assembly further comprising an electrically operated heating element for heating the heat spreader.

The present invention relates to an instantaneous heater, comprising a heating assembly, wherein the heating assembly includes a heating element, a first shell, a first inlet tube, a first water outlet, a hot water cavity, a cold water cavity and a capillary tube, the hot water cavity is in the first shell, the heating element is in the hot water cavity, the hot water cavity communicates with the cold water cavity, the first inlet tube communicates with the cold water cavity, the first water outlet is on the top of the first shell and communicates with the hot water cavity, the capillary tube is in the cold water cavity, one end of the capillary tube communicates with the hot water cavity and the other end communicates with the outside of the first shell. The instantaneous heater boasts simple structure, low cost and effective prevention of vapor from rapidly erupting.

A heater for heating liquid to boiling comprises a heating element (48; 106), a first heating region (18, 20; 100) heated by said heating element (48; 106) for heating liquid flowing therethrough to a temperature below boiling, and a second heating region (22; 102) for heating said liquid to boiling. The second region permits the exit of steam therefrom separately from heated water.

A temperature modulation system for a bed, blanket, or other furniture includes a fluid for moderating temperature change, a number of conduit circuits for directing the fluid through respective zones, a control unit including a thermoelectric device for modulating temperature of the fluid, and a pump. Each of the conduit circuits selectively and independently directs fluid through its respective zone in order to produce a temperature within the zone that is independent of the temperature outside the zone. The system also includes an arrangement of one or more zones in an arrangement in which the control unit is programmed to vary the zone temperature over time according to a schedule.

A pitot tube is provided having a tube wall and a heating arrangement for generating heat for heating thereby at least a portion of the tube wall to prevent the tube from becoming clogged with ice. The heating arrangement includes a radiation absorbing surface configured for absorbing electromagnetic radiation (EMR) and generating the heat. At least one radiation conveying portion is provided for receiving EMR from an EMR source and conveying it to the radiation absorbing surface.