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 heat dissipating system of movable robot is provided. The heat dissipating system includes a movable robot and at least one wind resistance structure. The movable robot includes a housing, at least one airflow passage and plural first air holes. The housing defines an inner space, the airflow passage is disposed in the inner space, and the first air holes are disposed on the housing and are in communication with the airflow passage respectively. When the movable robot moves, an air current is generated accordingly. The air current partially flows into the airflow passage through the first air hole acted as an inlet, and the air current in the airflow passage is released from the first air hole acted as an outlet. The wind resistance structure is configured for guiding the air current into the first air hole acted as the inlet.

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 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 apparatus for heating gas utilizes a series of chambers through which a gas volume is advanced, and a gradational heat transfer element which enables incremental heat transfer to the gas volume as the gas volume is advanced through the chambers.

An apparatus for heating gas utilizes a series of chambers through which a gas volume is advanced, and a gradational heat transfer element which enables incremental heat transfer to the gas volume as the gas volume is advanced through the chambers.

There is provided an electric suspended radiant disk heater apparatus comprising: a central and vertical ceiling mount pole for hanging from a ceiling at an upper end thereof in use; a radiant heater disk element fastened at a lower end thereof, the radiant heater disk element being substantially co-axial with the ceiling mount pole, being substantially perpendicular to the ceiling mount pole and extending radially from the lower end of the pole; and an electric heater element thermally coupled to the radiant heater disk element to heat the radiant heater disk to radiate heat from a radiant heat emitting undersurface thereof.

An appliance comprising a firebox, a first air duct and a room air chimney. During operation of the appliance heated room air adjacent to a viewing pane or the screen and heated room air from the first air duct is received within the chimney. The heated air within the chimney rises toward an open upper end causing the chimney to draw additional room air from adjacent to the viewing pane or screen.

An appliance comprising a firebox, a first air duct and a room air chimney. During operation of the appliance heated room air adjacent to a viewing pane or the screen and heated room air from the first air duct is received within the chimney. The heated air within the chimney rises toward an open upper end causing the chimney to draw additional room air from adjacent to the viewing pane or screen.

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.