A tankless water heater system (100), with a heat exchanger device (20) comprising at least one hollow chamber (21, 22, 23, 24) and at least one electrical heating element (52, 53, 54), and a controller device (30) with a temperature control unit (35), a tap event counter unit (32), a down-time counter unit (33) and a time delay unit (34); an electrical switching element (41, 42, 43) for connecting or is connecting one or several heating elements (52, 53, 54) to/from a power supply; an outlet temperature sensor (27) linked with the temperature control unit (35); a flow rate sensor (29); wherein: the tap counter unit (32) is connected to the flow rate sensor (29) and is triggered when water flow rate exceeds a tap indication threshold the down-time counter unit (33) is triggered and retriggered by the tap counter unit (32) and both provide a down-time event signal after any inactivity period with no water flow and records the duration of inactivity; the time delay unit (34) is connected to and triggered by the tap counter unit (32) starting a delay period which duration is switched from a short default delay period to a long delay period by the down-time signal provided by the down-time counter unit (33); and the switching elements (41, 42, 53) are triggered by the time delay unit (34) only after the delay period has elapsed.

A heating unit for heating an enclosure includes a base having a central axis, a first end, a second end axially opposite the first end, and a cavity extending axially from the first end. In addition, the heating unit includes a heater disposed in the cavity of the base. Further, the heating unit includes a heat sink mounted to the base. The heat sink includes a plurality of laterally spaced fins and a plurality of laterally spaced channels positioned between the plurality of fins. Still further, the heating unit includes a manifold coupled to the base. A surface of the manifold faces the base and the heat sink. The manifold includes a flow passage and a plurality of orifices in fluid communication with the flow passage. Each orifice has an outlet at the surface of the manifold that is aligned with one of the channels of the first heat sink.

An aerosol-generating system may comprise a releasably connectable capsule and vaporizing unit. The capsule may comprise a reservoir for containing an aerosol-generating substrate, an opening in fluidic communication with the reservoir, and a valve configured to control a flow of the aerosol-generating substrate from the reservoir through the opening. The valve may comprise one or more resilient closing members biased towards a closed position. The vaporizing unit may comprise a transfer element and a heating element disposed in a housing. The heating element is configured to heat the aerosol-generating substrate in the transfer element. The vaporizing unit may also comprise an elongate element configured to engage with the valve to deflect the one or more resilient closing members from the closed position to an open position so as place the transfer element in fluidic connection with the reservoir when the capsule is connected to the vaporizing unit.

An aerosol-generating system includes a liquid storage portion including housing holding a liquid aerosol-forming substrate and a capillary medium. The housing has an opening. A fluid permeable heater assembly includes an arrangement of electrically conductive filaments arranged to define an air impingement surface. The fluid permeable heater assembly extends across the opening of the housing. The filament arrangement defines a filament opening allowing airflow to pass through. The capillary medium is provided in contact with the heater assembly. The capillary medium is configured to draw the liquid aerosol forming substrate to the electrically conductive filament arrangement. The capillary medium includes a capillary medium opening extending the filament opening through the capillary medium.

The present invention relates to the technical field of atomization and discloses an atomizing device which comprises a heating part, a glass heating element and a quartz holder, wherein the heating part is embedded in the glass heating element, the quartz holder is made with a through-holding cavity, the glass heating element is arranged in the holding cavity, the quartz holder is made with auxiliary air inlet holes on the side wall, and the glass heating element is made with a heating element air passage communicating with the auxiliary air inlet holes so as to meet the user's needs for atomized tobacco tar, thus facilitating atomization of tobacco tar.

An atomizing assembly includes a housing, an atomizing base, an atomizing element, and a sealing member. The housing is provided with a liquid storage chamber and an airflow channel. The liquid storage chamber is configured to store liquid. The atomizing base is fixed to the housing and configured to seal the liquid storage chamber. The atomizing base is provided with a liquid inlet in communication with the liquid storage chamber. The atomizing element is disposed in the atomizing base and configured to atomize the liquid flowing into the atomizing element through the liquid inlet. The sealing member is movably disposed on the atomizing base and configured to seal or unseal the liquid inlet. An electronic atomizing device is further provided, which includes the aforementioned atomizing assembly and a power supply assembly connected to the housing and electrically coupled to the atomizing element.

A heat exchanger for heating a fluid that exhibits simplified manufacturing, a reduced construction size, and/or an increased heating efficiency. The heat exchanger has at least two distanced tube bodies through which a flow path of the fluid leads. A thin-film resistor is applied on the outer surface of at least one of the tube bodies with an interface made of a thermal interface material located between the thick-film resistor and the next neighboring tube body.

An improved liquid vaporization and conditioning system, and associated method, for efficiently vaporizing a liquid sample for accurately determining the constituent components thereof providing enhanced flow rate, pressure and thermal control, the improvement including a combination of a resistance temperature detector, a sweeping bend to, an in-line thermal break, a flow buffering input manifold, enhanced multi-path heater vaporizer construction with four heater units, a vaporizer output mixing manifold and control elements providing a capability for partial shutdown in the event of compromised heating or flow anomalies without risk of flow loss/volume capacity beyond a permissible threshold and an improved, modular heat vaporizer enclosure.

An aerosol-generating device includes an electrical power supply, a cavity structure configured to receive an aerosol-generating article, and a plurality of semiconductor heaters within the cavity structure. Each of the plurality of semiconductor heaters includes a substrate layer and a heating layer on the substrate layer. The heating layer is a continuous layer. The aerosol-generating device includes a controller configured to control a supply of electrical power from the electrical power supply to each of the plurality of semiconductor heaters.

A heating apparatus for an aerosol generating device includes a heating element supported within a housing and extending along the length of the housing, an air flow path arranged to transport air over the heating element, and a liquid supply configured to supply liquid to the heating element, wherein the heating element includes a woven sheet of electrically conductive fibres, and wherein the fibres are arranged with a regular orientation to form a woven mesh that transports liquid by capillary action, in use. The woven sheet includes a first array of electrically conductive fibres extending in a first direction.