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 coffee maker of the present invention includes a housing, a water reservoir disposed in the housing and a shower head in fluid communication with the water reservoir. The coffee maker also include a first heating element for heating water from the water reservoir and being controllable between and ON state and an OFF state, and a second heating element located downstream from the first heating element and being controllable between an ON state and an OFF state. The first and second heating elements are operable in at least a first mode and a second mode, the second mode being different from the first mode.

An object of the present invention is to suppress adhesion of scale to a surface of a ceramic heater that is used for fluid heating. The ceramic heater has a ceramic body and a coating layer. The ceramic body has a heat generation resistor. The coating layer contains glass as a main component and is formed so as to coat a surface of the ceramic body. The coating layer has a function of smoothing the surface of the ceramic body.

An inter-axial inline fluid heater is presented. The inter-axial inline fluid heater includes an outer retaining sheath defining a first area, and an interior flow tube disposed within the outer sheath and capable of having fluid flow therethrough. Further, the interaxial inline fluid heater includes a resistance wire disposed between the interior flow tube and the outer retaining sheath, the resistance wire capable of producing heat for heating a fluid passing through the interior flow tube when power is applied to the resistance wire. Also includes is a dielectric heat transfer material disposed between the interior flow tube and the outer retaining sheath and surrounding at least a portion of the resistance wire.

The present disclosure relates to systems and methods for connecting to an auxiliary power source and operating a water heater. One exemplary aspect is directed to a water heater configured to heat a volume of water. The water heater can include a first heating system configured to operate at a first power and a second heating system configured to operate at a second power. The second power can be less than the first power. The water heater can further include a first AC connection configured to receive externally supplied AC power at a first voltage and a second AC connection configured to receive externally supplied AC power at a second voltage. The second voltage can be less than the first voltage. The water heater can use only the second heating system when the second AC connection receives the externally supplied AC power at the second voltage.

A recirculating bath includes a reservoir for receiving a working liquid, a recirculating pump, and at least one thermal element. The recirculating pump and thermal element are located externally to the reservoir so that the reservoir has an unobstructed working space. The thermal element may be thermally coupled to the working liquid through an interior surface of the reservoir, or the working liquid may be circulated over the thermal element by the recirculating pump in a chamber external to the reservoir. The recirculating bath may also include a lid that provides access to the reservoir by pivoting on a latching hinge. When open, the lid may provide a working surface adjacent to the reservoir. The lid may also include a selector that unlatches the hinge so that the lid can be removed. The recirculating pump may be fluidically coupled to the reservoir via a manifold.

A tankless water heater, comprising: a flow channel with a cold-water inlet pipe, a heating unit with an heating element configured to heat water flowing through the heating unit and a hot-water outlet pipe, and a control unit configured to control the tankless water heater, wherein the control unit is configured to receive a power limitation signal of an external facility management system and to control a heating output of the heating element depending on the power limitation signal.

An electric heater to heat a flow of a fluid having a jacket block comprising a plurality of longitudinal bores to allow the through-flow of a gas phase medium. An elongate heating element extends through each of the bores and is positionally stabilised within the jacket block via a plurality of stabilising fins that project radially inward to at least partially surround the elongate heating element within each of the bores.

Disclosed is a heating device, including a housing, and an electrothermal film and a fan arranged in the housing, wherein the fan is located at a bottom of the electrothermal film, the fan is provided with an air inlet facing upwards and an air outlet facing forwards, and the housing is provided with a vent hole at a position corresponding to the air outlet.

A power electronics assembly of a domestic appliance includes a first relay controlling an electrical contact between a first current-carrying conductor and an electric consumer. The assembly further includes a semiconductor switching element that switches the electrical contact between the first current-carrying conductor and the electric consumer and is arranged in parallel with the first relay. A controller is programmed to activate the semiconductor switching element to switch on the electrical consumer before the first relay is closed.