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.

This is an upright heater igniting combustible gas to induce a naturally aspirated flame within a glass tube. Air channels producing the naturally aspirated flame enters the glass tube in a direction perpendicular to the direction of the flame thus creating a twirling flame. Heat waves generated by the twirling flame within a glass tube rises to a heat concentrator and projected onto a parabolic heat shield thus reflecting the heat wave radially downward and outward.

A down-fired flame burner includes a flame holder positioned below the burner. The flame holder includes a plurality of perforations that collectively confine a combustion reaction of the burner to the flame holder.

A heater is provided which has a heating chamber divided into a plurality of heating compartments, each operably to provide heat in a respective heating direction. The heater includes a respective heating element for each heating compartment, and the operation of at least one of the heating elements is independently controllable from the operation of at least one other heating element. There is also provided a gas burner assembly the heat and a control system controlling the operation of the heating element.

A method and device utilizing infrared energy for heating objects, while providing energy control and enabling a decrease radiative heat flux (or intensity) of the infrared energy. An infrared emission device providing reduction of radiative heat flux or intensity from a primary emitter according to the invention may comprise a heat source, a primary emitter that emits infrared radiation of a first wavelength, and a secondary emitter that is spaced apart from the primary emitter. The secondary emitter receives infrared radiation emitted from the primary emitter and emits infrared radiation. The secondary emitter is constructed and arranged to emit infrared radiation having a wavelength that is longer than the infrared radiation of the first wavelength.

A device for use in a burner, including a honeycomb body formed from a metal band. The metal band is laminated or coiled to yield a plurality of holes or apertures. The honeycomb body has first and second surfaces which are opposite to each other. The holes or apertures penetrate through the first surface and the second surface, and an outer boundary of the first surface and an outer boundary of the second surface are connected whereby yielding a lateral surface. A through hole is disposed on the lateral surface of the honeycomb body and penetrates inward through multiple layers of adjacent laminated or coiled metal bands, and a metal wire is disposed in the through hole; and/or, a part of the laminated or coiled metal bands on the first surface and/or the second surface are embedded, overlapped and engaged with adjacent metal bands to form an embedded member.

A down-fired flame burner includes a flame holder positioned below the burner. The flame holder includes a plurality of perforations that collectively confine a combustion reaction of the burner to the flame holder.

A combustion membrane (14) for a gas burner (2) comprises a fabric or mesh (21) of interlaced metal threads (22), having two opposite interlacing surfaces (19, 20) which form a combustion surface (19) and an inner surface (20) of the fabric/mesh (21), respectively, wherein the metal threads (22) are formed by twisted metal fibers (22) to form a yarn and: the individual metal fibers (22) are shorter than the yarn (22) formed therefrom, and free ends (22) of the metal fibers (22) protrude divergently from the yarn (22) along its longitudinal extension and make the yarn (22) hairy, and the metal thread (22) is a yarn (22) of mass per length in the range from 0.8 g/m to 1.4 g/m.