Radiant fired heaters used with reactors are described. The apparatus includes at least two sets of radiant fired heaters, the first set being at a second height less than the first height. Each set of radiant fired heaters comprises at least one radiant fired heater. Each radiant fired heater has at least one process coil disposed within the heater, burners, and a flue gas outlet. There is at least one inlet manifold having an inlet and multiple outlets, with each outlet of the inlet manifold in fluid communication with one process coil inlet. There is an outlet manifold having multiple inlets and an outlet, with the multiple inlets in fluid communication with the process coil outlets. A method of selecting a reforming apparatus arrangement is also described.

The present disclosure generally relates to systems and methods for the combustive abatement of waste gas formed during the manufacture of semiconductor wafers. In particular, the systems described herein are capable of combusting air-polluting perfluorocarbons, including those having high greenhouse gas indexes such as hexafluoroethane (C.sub.2F.sub.6) and tetrafluoromethane (CF.sub.4), as well as particulate-forming silicon dioxide precursors, such as silane (SiH.sub.4) and tetraethoxysilane (Si(OC.sub.2H.sub.5).sub.4, abbreviated TEOS), with greater efficiency and lower energy usage than prior abatement systems. More particularly, and in one preferred embodiment, the present disclosure is directed to a waste gas abatement system that utilizes a combination of non-combustible and combustible gases (or gas mixtures) for thermal combustion, which are directed through multiple permeable interior surfaces of a reaction chamber, efficiently combusting waste gas and preventing undesirable accumulation of solid particulate matter on the chamber surfaces.

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.

The handheld snow melter is a handheld propane or stabilized methylacetylene-propadiene fueled parabolic heated intended for use in removing snow and ice. The handheld propane or stabilized methylacetylene-propadiene torch is used to heat a ceramic cone. The ceramic cone is mounted in a parabolic reflector that is used to direct the heat towards the snow or ice targeted by the user. The handheld snow meiter comprises a reflector, a torch attachment, and a grip.

A radiant heating assembly includes a fuel valve, a blower, a controller configured to control the fuel valve and the blower, and a heat exchanger or burner tube configured to limit external surface temperature through the use of a liner tube and a temperature limiting device. The liner tube can be installed internally into the walls of a heat exchanger or burner tube to decrease the surface temperature of the heat exchanger.

A combustion heater includes an inner tube having a supply passage for combustion gas in an inner portion, and an outer tube disposed to provide a separated combustion space in an outer periphery of the inner tube. A hole part for ejecting the combustion gas is formed on a tube wall of the inner tube and combustion gas is ejected with ejection characteristics such that circulating flow is formed on the periphery of a stagnation point. According to this combustion heater, a stable flame can be formed without increasing costs and the heating efficiency can be improved.

A burner for a gas cooker that includes a burner port defining an interior area, the burner port including an opening to the interior area; one or more tubes that are coupled to the burner port and that are configured to provide mixed gas to the interior area of the burner port; a heating element that is configured to cover the opening of the burner port and that is heated by gas-generated heat; and a shielding plate that (i) is coupled between the heating element and the burner port, (ii) is configured to cover a first portion of the opening of the burner port, and (iii) is configured to spread mixed gas that is provided from the one or more tubes into the interior area of the burner port.

A radiant panel burner is provided having a primary heat emitter and a secondary heat emitter. The radiant panel includes a plenum chamber that houses a baffle connected to a mixer that supplies combustible gas. In a preferred embodiment, the primary heat emitter is a perforated ceramic grid positioned over the plenum chamber and having a plurality of ports through which the combustible gas can travel. The secondary heat emitter is a non-planar radiant panel positioned over the primary heat emitter that generates convective and radiant heat. The non-planar shape of the secondary heat emitter provides more uniform heating and reduces accumulation of cooking by-products. The radiant panel protects the primary heat emitter from contaminants and provides enclosure for the combustion area for more rapid and efficient heating. Together, the primary and secondary heat emitters are configured to provide fast, clean, efficient, and uniform heating within a grilling apparatus.

A radiant heating tube device with a fuel-heated burner and a flame tube located inside the radiant heating tube often shows an undesirable increase in temperature in the area of the closed end of the radiant tube. This temperature rise can be reduced by installing an additional tube or other flow body in the area of the end of the flame tube. This achieves a more uniform radiant tube surface temperature.