An oven appliance defines a vertical direction, a lateral direction and a transverse direction. The vertical, lateral and transverse directions are mutually perpendicular. The oven appliance includes a cabinet extending between a first side portion and a second side portion along the lateral direction. The cabinet also extends between a top portion and a bottom portion along the vertical direction. The cabinet defines an upper cooking chamber positioned adjacent the top portion of the cabinet and a lower cooking chamber positioned adjacent the lower portion of the cabinet. The oven appliance also includes a single heat source in thermal communication with an ambient environment around the oven appliance by natural convection and a fan operable to provide direct thermal communication from the single heat to one or both of the upper cooking chamber and the lower cooking chamber by forced convection.

Gas cooktops disclosed herein may include a proportional solenoid valve controlling gas flow to a gas burner, where the proportional solenoid valve has a continuously variable range of positions. A user interface (UI) element associated with the proportional solenoid valve may be utilized to control a linear voltage regulator having a continuously variable output voltage. The output voltage of the linear voltage regulator is coupled to a solenoid of the proportional solenoid valve, such that the gas flow to the gas burner has a linear relationship with the output voltage of the linear voltage regulator.

A gas fireplace combustion device structure includes a simulated solid fuel and a combustor under the simulated solid fuel. The combustor has a fire exit hole facing the simulated solid fuel, a combustion air inlet passage under the combustor, and a specific slot at the combustor to define a third combustion air inlet. A partition is installed under the combustor; a second combustion air inlet leading to fire exit hole is formed between the partition and the combustor; the combustion air inlet passage is provided for supplying air to the second and third combustion air inlets; a combustion air slot is formed at the middle of the simulated solid fuel to resupply combustion air to the flame above the simulated solid fuel in order to achieve a two-time sectional combustion. This invention can control and resupply combustion air to the flames in different areas to improve the combustion effect.

An apparatus and method for aesthetic enhancement of indoor and outdoor living spaces combines fire, bubbling water and light reflection to foster enjoyment and relaxation. Wall assemblies having glass panes are spaced apart from each other to provide a chamber to hold water separate from a burner assembly. Air pumped into the water forms air bubbles in the water. A LED light strip illuminates the water, bubbles and glass panes in changing colors.

A joint, a knob assembly, and an appliance having a joint and a knob assembly are provided. The joint may include a housing, a first shaft support, a second shaft support, and a coupling shaft. A slot having a predetermined width extending in a circumferential direction of the housing and a predetermined length extending in a longitudinal direction of the housing may be formed in the housing. The coupling shaft provided in the second support may include a rotary shaft rotatably inserted into the slot. A stopper may be formed to protrude from an outside of the rotary shaft, and a position of the stopper inside the slot may be changed according to rotation of the rotating shaft. The stopper may be provided in the slot so that the stopper interferes with an inner wall of the housing formed by the slot at a predetermined position.

A fireplace and method of manufacturing a fireplace. Embodiments of the fireplace comprise a combustion chamber, a front opening allowing viewing within the combustion chamber, and a back wall opposite the front opening. The back wall can be controllably switched between an opaque state and a transparent state. A combustion region between the front opening and the back wall is adapted to provide a flame. A controller coupled to the back wall enables a user to switch the back wall between the opaque and transparent states. In embodiments the back wall comprises a glass panel and switchable film on the glass panel. The controller is coupled to the switchable film.

A gas burner assembly for a cooktop appliance includes a normally aspirated primary burner and a concentrically-positioned forced air boost burner. A dual-outlet solenoid valve receives fuel from a fuel source and selectively directs the fuel to a first solenoid outlet in fluid communication with the primary burner and a second solenoid outlet in fluid communication with the boost burner. The solenoid valve is positionable in a first position where the first solenoid outlet is substantially open and the second solenoid outlet is substantially closed and a second position where the first solenoid outlet is partially open and the second solenoid outlet is substantially open.

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.

A joint, a knob assembly, and an appliance having a joint and a knob assembly are provided. The joint may include a housing, a first shaft support, a second shaft support, and a coupling shaft. A slot having a predetermined width extending in a circumferential direction of the housing and a predetermined length extending in a longitudinal direction of the housing may be formed in the housing. The coupling shaft provided in the second support may include a rotary shaft rotatably inserted into the slot. A stopper may be formed to protrude from an outside of the rotary shaft, and a position of the stopper inside the slot may be changed according to rotation of the rotating shaft. The stopper may be provided in the slot so that the stopper interferes with an inner wall of the housing formed by the slot at a predetermined position.

A log-like block for a gas burner is provided. The block having a pipe with a distal part at least partially made of flexible material and associated with at least one distal end of the pipe, and a pipe proximal part associated with a proximal end of the pipe. The block further includes a passage with shape and dimensions corresponding to those of the distal part. The distal part being built-in the passage so that the distal end is closed therein and the distal part is incapable of being moved relative to the passage. The proximal part being configured to be brought into gas communication with a gas supply source. The block further comprises a pipe outlet opening formed in the pipe distal part, exposed to an exterior of the block so as to allow gas to exit the pipe through the opening.