An electrical radiator type heating appliance comprises a case housing a heater member producing a first flow of calories (F1) when an input of the heater member is powered by a direct electric voltage. The heating appliance also comprises a voltage converter implanted in the case and comprising an input provided with connection elements for connecting the voltage converter to an electric power supply source and an output delivering a direct electric voltage adapted to directly or indirectly power the input of the heater member.

A machine core component, which is a universal part component for heater and fan manufacture, includes a core housing with a vertical structure having an air inlet at a lower end portion, an air outlet at an upper end portion, and an air duct formed between the air inlet and the air outlet; a driving motor and a wind wheel supported and received inside the core housing; and a heating element mounting window located at the air inlet for quick and easy installation of a heating element so that the machine core component can be used for fan or heater manufacture.

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 relative to the jacket block via at least one support member, optionally in the form or an elongate rod to inhibit undesirable independent axial and/or lateral movement of the heating element relative to the jacket block.

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 that together with the jacket block define a heating assembly to heat the gas. The heating assembly is positionally stabilised within the electric heater via at least one brace configured to inhibit undesirable independent axial and/or lateral movement of the heating assembly within the electric heater.

An electric radiator heating device (10) intended to be electrically connected to an electrical power source comprises an enclosure consisting, at least in part, of a metal casing (11), at least one radiant heater (12, 12a, 12b) implanted in the metal casing (11), N at least one first shielded element (15) consisting of a first type of resistive body capable of generating heat when it is supplied with an alternating electric current and at least one second shielded element (16) consisting of a second resistive body capable of generating heat when it is powered by a direct electric current. Said at least one first shielded element (15) and said at least one second shielded element (16) are embedded in the material (17, 17a, 17b) of said at least one radiant heater (12, 12a, 12b).

An electric fireplace (410) includes a fireplace housing (412) and a heater assembly (426) that is configured to generate heated air. The heater assembly (426) is configured to be installed substantially within the fireplace housing (412). The heater assembly (426) includes a heater body (445), a first grill cover (448) that is selectively couplable to the heater body (445), and a second grill cover (548) that is alternatively selectively couplable to the heater body (445). The first grill cover (448) has a first cover length (468), and the second grill cover (548) has a second cover length (568) that is different than the first cover length (468). The heater assembly (426) is selectively positionable within a cabinet (311) having a structural opening (311A), and a center shelf (360) that defines at least a portion of an upper side (311U) of the structural opening (311A). The heater assembly (426) is installed substantially adjacent to the center shelf (360).

A heating apparatus including a storage device and at least one heater member. The heater member can be connected to the storage device and an electric power supply source. An inverter is connected to the output of the storage device and the electrical supply source. First switching elements are used to vary the first connection elements between an open circuit configuration and a closed circuit configuration in which electrical energy stored in the storage device is injected into the electrical supply source via the inverter.

An electronic cigarette includes a shell and a mouthpiece. The external wall of the shell has an air inlet. An atomizer and a liquid-supply are in contact with each other. The air inlet, atomizer, and an aerosol passage are interconnected.

Systems, tools, and methods are presented that enable a circuit to introduce a random time delay before actuating a relay to start or stop a supply of electrical power to a heating element of a heating, ventilating, and air conditioning (HVAC) system. In one instance, the circuit includes a time-delay switch electrically connected to the relay. The time-delay switch has a random time delay before entering a closed state or open state. The relay is operable to start and stop a supply of electrical power to the heating element in response to the switch entering, respectively, the closed state and the open state. Other systems, tools and methods are presented.

An electronic cigarette includes a shell and a mouthpiece. The external wall of the shell has an air inlet. An atomizer and a liquid-supply are in contact with each other. The air inlet, atomizer, and an aerosol passage are interconnected.