A heater with a visual flame display is described. The heater may include a top portion and a base, separated by concentric cylinders. The innermost cylinder houses a flame element, which may be spun into a vortex. The cylinders may be constructed from transparent materials such that the flame element is visible to an observer. The base provides heat at or near ground level for efficient heat distribution.

Examples are disclosed that relate to cooking systems with internal ventilation systems. One example provides a cooking system comprising a ventilation duct. The ventilation duct comprises an inlet aperture configured to receive cooking exhaust. An ozone generator is configured to dispense ozone gas into the ventilation duct. The cooking system further comprises a fan disposed within the ventilation duct, the fan being configured to pull the cooking exhaust and the ozone through the inlet aperture and the ventilation duct. The cooking system further comprises a particulate removal system positioned within the ventilation duct between the inlet aperture and the fan. One or more cold catalysts are positioned downstream of the particulate removal system. The one or more cold catalysts are configured to catalytically decompose at least some residual ozone.

A damper system comprises a damper slide adapted to couple to a wall with a first outlet. In one embodiment, the damper slide has a first opening and is adapted to operate in a first position and a second position. In the first position, the first opening is at least partially aligned with the first outlet. The first opening and the first outlet are at least partially offset in the second position.

A cooking appliance is provided that may include a main body having a cooking chamber formed therein; a lower space formed inside the main body and separated from the cooking chamber between a bottom of the main body and the cooking chamber; and first and second heating assemblies, the second heating assembly being installed inside the lower space. An opening configured to open the lower space portion to an outside of the main body may be formed in the lower space between the bottom of the main body and the cooking chamber, and the second heating assembly may be inserted into or withdrawn from the lower space through the opening.

A cooking appliance is provided that may include a main body having a cooking chamber formed therein and including a rear surface, a lower surface, and a side surface; a lower case provided below the lower surface to form an accommodation space therein; first and second heaters, the second heater installed in the accommodation space and configured to generate heat; a first discharge port through which an inside of the lower case communicates with an outside of the main body; a second discharge port through which an inside of the cooking chamber communicates with the outside of the main body; and a flow path connection member configured to form a flow path guide to guide heated air discharged through the first discharge port toward the second discharge port.

A cooking device includes a base, a housing, a lid, a detection module, a control module and an exhaust module. The detection module includes an image detection sensor arranged on the lid and configured to take an image of a cooking process. The control module includes a processor connected with the detection module and arranged in the base or the housing, and a wireless unit configured to perform information interaction with a portable electronic device to transmit cooking parameters including the image out of the cooking device. The exhaust module includes an air-filled element, an air-extraction element, an inlet passage and an exhaust passage. The inlet passage is disposed on the lid, the air-filled element is disposed on the inlet passage, the air-extraction element is disposed on the exhaust passage and used to exhaust fog or oil fume generated in the at least one inner pot

A heater with a visual flame display is described. The heater may include a top portion and a base, separated by concentric cylinders. The innermost cylinder houses a flame element, which may be spun into a vortex. The cylinders may be constructed from transparent materials such that the flame element is visible to an observer. The base provides heat at or near ground level for efficient heat distribution.

A gas-burning appliance includes a combustor and a flow guide device engaged with the combustor. The combustor has a gas outlet. The flow guide device includes a separator and two stop plates. The separator has an opening. Each of the stop plates is located at the opening, and a top edge thereof is higher than a top surface of the separator. The combustor is located below the separator with the gas outlet corresponding to a space between the stop plates. The flow guide device has at least one first air inlet, which is located below the separator, and communicates with the space between the stop plates. A gas fireplace includes a firebox, a translucent shield, and the gas-burning appliance. A separator divides the firebox into an air chamber, which receives the combustor, and a combustion chamber. Whereby, the visibility of flame and the combustion efficiency could be improved.

A damper mechanism restricting combustion and exhaust air flow in response to temperature changes in a direct vent sealed combustion gas fireplace is provided. The mechanism allows the fireplace to have unrestricted air flow when the fireplace is not on and to restrict the air flow when the fireplace is on. A bi-metallic temperature responsive element is used to move a restrictor element to restrict air flow allowing maximum air displacement during cold ignition and enhancing operating efficiency when the fireplace is on.

Cooking apparatus comprises an oven. The oven comprises a cooking chamber, a heated air source and two or more vents through which, in use, heated air can vent from the cooking chamber. The two or more vents comprise at least one lower vent and at least one upper vent. The at least one lower vent is provided at a lower height than the at least one upper vent. The at least one upper vent is controllable to regulate a flow of heated air therethrough.