The present disclosure is directed to a multi-heat source apparatus. The multi heat source may include a fire pit and is configured to provide ambient heating with both convection heat transfer and radiation heat transfer. The multi-heat source apparatus comprises an infrared emitter for generating infrared radiation. The multi-heat source apparatus comprises a shielding member between a heat source for the convection heat transfer and another heat source for radiation heat transfer.

A radiant area heater includes a columnar base with a hollow compartment and a heating column disposed on the columnar base. The heating column includes a control portion with at least one controller, a burner, and a sparker and a flame portion that includes a combustion chamber. The combustion chamber is disposed on a cylindrical member that has at least one vent allowing air to circulate to the burner and within the combustion chamber. The heating column further includes at least one heat emitting screen disposed above the flame portion that radiates heat outwards from the heater. A cover is disposed over the heating column to direct heat outwards and away from the heater.

A plaque for a radiant heating system can include a main body defining an outer surface and a plurality of pores defined within the main body, wherein at least some of the plurality of pores are disposed in a non-parallel relationship with at least some others of the plurality of pores, or wherein at least some of the pores are parallel with each other. A burner assembly including a plurality of adjacently arranged plaques reduces the ignition time and delay for adjacent plaques after the central plaque has been ignited.

A radiant heating assembly including a burner for heating a heat exchanger and a reflector generally disposed about the heat exchanger. The reflector comprising a base defining a first air chamber. The reflector may also comprise one or more wings removably coupled to the base. The wings may be configured to define a second air chamber. The radiant heating assembly may also comprise an air circulation pump configured to draw air through the air chamber of the base and/or wing and provide the air to the burner to improve the efficiency of the combustion process.

The present disclosure is directed to a multi-heat source apparatus. The multi heat source may include a fire pit and is configured to provide ambient heating with both convection heat transfer and radiation heat transfer. The multi-heat source apparatus comprises an infrared emitter for generating infrared radiation. The multi-heat source apparatus comprises a shielding member between a heat source for the convection heat transfer and another heat source for radiation heat transfer.

A heater includes: a body that includes a furnace body and a mesh cover assembly; a burner assembly that is installed on the body; a gas tank that is arranged in the body and directly below the burner assembly; and a reflecting plate that is installed in the body and located between the burner assembly and the gas tank. The gas tank has an interface end connected to a fuel inlet end of the burner assembly via a valve. The mesh cover assembly and the burner assembly are detachably connected to the furnace body.

Portable handheld ceramic tile infrared burners and methods for using the same are disclosed for use to heat objects including to broil steak and other foods. In particular, a portable handheld ceramic tile infrared burner comprising a ceramic tile infrared burner assembly, a handle for maneuvering the ceramic tile infrared burner assembly during use, and a gas supply line for connecting to a gas source is disclosed. In some embodiments, the handle and gas supply line are integrated such that the gas supply line serves as the handle for maneuvering the ceramic tile infrared burner assembly during use. In some embodiments, the ceramic tile infrared burner assembly is at least partially enclosed in a housing. The handle may be connected to the housing or to the ceramic tile infrared burner assembly. The portable handheld ceramic tile infrared burner may further comprise one or more heat shields. The portable handheld ceramic tile infrared burner may be configured to connect to disposable or refillable gas cylinders or to a natural gas line. In some embodiments, the portable handheld ceramic tile infrared burner comprises a valve. In further embodiments, the portable handheld ceramic tile infrared burner comprises a gas adjustable regulator or a gas nonadjustable regulator. The portable handheld ceramic tile infrared burner may be used alone or as an auxiliary or additional heat source either simultaneously with or in series to other cooking processes, such as grilling, oven cooking or sous vide method, to achieve desired temperatures.

An oven appliance, as provided herein, may include a plurality of chamber walls, a bottom heating element, a base panel, and a cooking plate. The plurality of chamber walls may define an oven chamber. The plurality of chamber walls may include a back wall, a top wall, a first side wall, a second side wall, and a bottom wall. The bottom heating element may be mounted above the bottom wall to heat a cooking surface within the oven chamber. The base panel may be disposed over the bottom heating element. The base panel may define an oven vent and a receiving zone spaced apart from the oven vent. The base panel may further define an enclosed region with the bottom wall about the bottom heating element. The cooking plate may be disposed on the base panel within the receiving zone. The cooking plate may define the cooking surface.

An oven appliance, as provided herein, may include a plurality of chamber walls, a bottom heating element, a base panel, and a cooking plate. The plurality of chamber walls may define an oven chamber. The plurality of chamber walls may include a back wall, a top wall, a first side wall, a second side wall, and a bottom wall. The bottom heating element may be mounted above the bottom wall to heat a cooking surface within the oven chamber. The base panel may be disposed over the bottom heating element. The base panel may define an oven vent and a receiving zone spaced apart from the oven vent. The base panel may further define an enclosed region with the bottom wall about the bottom heating element. The cooking plate may be disposed on the base panel within the receiving zone. The cooking plate may define the cooking surface.

An infrared radiation heater includes: a combustion chamber having a combustion space that is open on one side; a combustion device provided in the combustion chamber to combust air-fuel mixture made by mixing fuel with air; and a radiator configured to be heated by heat generated from the combustion device and including a radiation plane configured to emit infrared radiation. The combustion device includes: a nozzle provided in a flow path of the air to inject the fuel; a tubular body including a side surface that faces a direction with a predetermined angle with respect to the radiation plane, and a plurality of voids being formed on the side surface; and an ignition device provided outside of the tubular body and configured to ignite the air-fuel mixture. The air-fuel mixture flows into the tubular body, and the tubular body releases the air-fuel mixture from the voids into the combustion chamber.