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.

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 portable heater that includes a ceramic substrate with a heating element configured to define a field of direct radiation, a heat reflector with a concave reflective surface configured to define a field of reflective radiation, a grill cover mounted on the heat reflector, where the ceramic substrate is mounted on an interior side of the grill cover with the heating element facing the concave reflective surface such that the field of direct radiation onto the concave reflective surface is unobstructed.

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.

A heater-integrated filter includes: a casing in which are formed an intake port for taking in a portion of process gas from a compressor and a discharge port for discharging the process gas; a filter body which is provided inside the casing and through which the process gas from the intake port passes; and rod-like heaters which are disposed inside the casing and along which the process gas that has passed through the filter body is capable of flowing toward the discharge port along the extension direction.

A steam therapy assembly includes a housing that has an intake and an exhaust to pass air through the intake and the exhaust. A water tank is removably attachable to the housing and the water tank has a fluid port to pass water therethrough for filling the water tank with water. An oil cartridge contains oil and the oil cartridge is removably insertable into the housing. A vaporizing unit is integrated into the housing and the vaporizing unit is in fluid communication between the intake and the exhaust to urge air into the intake and outwardly through the exhaust when the vaporizing unit is turned on. The vaporizing unit vaporizes the water in the water tank into a steam. Additionally, the vaporizing unit vaporizes the oil in the oil cartridge thereby mixing the vaporized oil with the vaporized water.

Tubing structures are connected to each other to form a tubing assembly having one or more fluid pathways from a fluid entrance to a fluid exit. A heating device is bonded to the tubing structures along a length of the tubing assembly. The heating device has a flexibility to follow along one or more bends present along the length of the tubing assembly. The heating device includes one or more heater traces embedded within an encasing material. The encasing material is thermally conductive and electrically insulative. The one or more heater traces are formed of a material that generates heat in the presence of an electrical current. The heating device has a continuous and unbroken structure along the length of the tubing assembly. An encapsulation layer of thermal insulating material is disposed over the tubing assembly and covers the heating device.

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. Other systems, tools and methods are presented.

The present invention relates to an electric heating device (3) in an exhaust gas system (1), having an outer circumferential, in particular circular, housing (4), wherein a rib structure is arranged in the housing (4), which rib structure can be heated by applying an electric current to it. The rib structure is arranged with rib rows (7) parallel to one another in the housing (4), wherein the parallel-arranged rib rows (7) are arranged such that are electrically connected to one another in series or in parallel.

With respect to pandemics, restaurants, stadiums, cafeterias, and bars are among the most dangerous places to socialize due to the form of interaction. Exchange of bacteria and viruses are facilitated intensively from the mouth and nose via air transport in droplets of saliva and bodily fluids being deposited on surfaces, foods, and in the air. The present development creates a comfortable environment where the air-space of each customer is separated by invisible cold-hot air and vis-UV barriers, which take away bacteria and viruses, destroying them and preventing recirculation while offering pleasant, clean, and sanitized ambient conditions for a face to face meeting. An immersive experience can be provided with surrounding screens and gas therapy that may be customized according to the customer's preferences. Food distribution is performed with a robotic shuttle system and when the customer departs, an extensive cleanup is performed using chemicals and UV irradiation through robotic systems.