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

A combustion device includes at least one burner, a supporting assembly, and an infrared ray generation assembly. The at least one burner includes a flame outlet and is adapted to burn gas. The supporting assembly includes a cover plate which has an opening and a plurality of holes, wherein the opening is corresponding to the flame outlet. The infrared ray generation assembly is disposed on the supporting assembly. The infrared ray generation assembly includes an infrared ray generation mesh which includes an emission surface which is adapted to emit infrared ray and corresponding to the plurality of holes. The heating efficiency of the combustion device can be effectively increased by generating an open fire and infrared rays as well as uniform heating.

A fuel-burning cooking burner includes a base defining an outer periphery and an inner open area. The burner further includes a cap coupled with the base around the outer periphery thereof and extending over the open area to define a distribution cavity on an interior side of the cap. The cap further defines a convex outer surface extending opposite the distribution cavity and a plurality of outlets extending through the cap from the distribution cavity to the exterior surface. The outlets are distributed over the entire exterior surface.

The present invention relates to a small, lightweight, portable or easily removable high temperature oven with a rotating floor, designed to bake one pizza at a time, and operate between 300 and 1400 F., with mechanisms to independently regulate the temperature of the dome and the floor of the oven, using thermocouples, infrared sensors, other temperature sensors, industrial oven controllers, other programmable logic controllers, solenoid gas valves, or proportional response gas valves, baffles and ventilation systems and other heat sources, control sensing and regulation systems, to imitate the baking conditions of a heavy ceramic traditional Italian cupola oven. Different embodiments include portable catering ovens, food truck ovens, very small pizzeria ovens, and residential ovens with automatic controls, that are approximately conventional residential countertop depth.

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.

According to one embodiment, a range for cooking includes a combustion chamber having a bottom surrounded by sidewalls that extend upward to an upper rim, a gas burner positioned at the bottom, and a platen positioned on the upper rim. The platen has an opening above the gas burner with a first flange. The range further includes a removable outer plate positioned on the first flange. The removable outer plate has an opening above the gas burner with a second flange. The range further includes a removable inner plate positioned on the second flange. The removable inner plate is circular and is made of cast iron. The removable outer plate is configured to increase the thermal resistance between the removable inner plate and the platen by having at least one of a different composition, thickness, and limited contact area than or with the platen.

One aspect of this disclosure provides a heat exchanger that comprises a first panel half coupled to a corresponding second panel half that form a passageway having at least a first chamber adjacent an inlet end of the passageway and a second chamber and overlapping interference patterns formed in each of the first and second panel halves that extend along at least a portion of the length of the passageway and located between at least the first and second chambers.

A griddle and a cooking appliance having a griddle is provided. The griddle may include a housing, a heating plate seated on a top of the housing, a burner provided inside the housing under the heating plate, and an exhaust vent forming a passage through which exhaust gas generated in the housing by the burner is discharged. The exhaust vent may be provided at a rear of the housing adjacent to a second end of the heating plate. The burner may be arranged such that a first end of the burner adjacent to a first end of the heating plate is positioned closer to the heating plate than a second end of the burner adjacent to the exhaust vent.

A griddle and a cooking appliance having a griddle is provided. The griddle may include a housing, a heating plate seated on a top of the housing, a burner provided inside the housing under the heating plate, and an exhaust vent forming a passage through which exhaust gas generated in the housing by the burner is discharged. The exhaust vent may be provided at a rear of the housing adjacent to a second end of the heating plate. The burner may be arranged such that a first end of the burner adjacent to a first end of the heating plate is positioned closer to the heating plate than a second end of the burner adjacent to the exhaust vent.

An insulated cover for the top of an outdoor patio heater includes a toolless fastening system and multiple layers of material. The upper layer is silicone-coated fiberclass cloth; the lower layer is a high-temperature fiber glass fabric, and those enclose an insulating layer of needle mat. The upper and lower layers are formed into substantially conical shapes using three radial sewing darts that are offset from the center of the layer. The fastening system has three sprung hooks spaced around the underside of the cover to hold the cover on the conical metal top of the heater. The hooks are fixed by lacing anchors to the lower and insulating layers.