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7607426 |
Dual fuel heater
In certain embodiments, a dual fuel heater has a pressure regulating device for selectively coupling with a first source or a second source operating at different pressures. The dual fuel heater...
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7223095 |
Composite concrete artificial log
A method of improving an individual artificial concrete log widely used in gas fires, the new concrete log( 1 ) having at least one decorative ceramic fiber pad ( 1 a ) or ( 2 a ) secured in the...
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6991454 |
Gas burner
A gas burner is provided that simulates wood burning fire and the glowing ember effect of real wood or coal burning. The burner has a burner pan which is covered by a refractory material and a...
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6843244 |
Portable heater
A portable heater comprises a housing, a heating element, and a fuel supply. The fuel supply is preferably a liquid gas type wherein a valve assembly meters the gas to the heating element. A...
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6823859 |
Flat heating surface type gas stove
There is disclosed a novel flat heating surface type gas stove which is capable of heating a heating substance across a heat resistance glass at practically applicable heating efficiency,...
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6805115 |
Catalytic embers for use with a gas fired log set
A synthetic ember comprising refractory ceramic wool coated with about 0.10 wt. % to about 5.0 wt. % of an oxidation catalyst of Pt, Pd, Rh, Co, Mn and mixtures thereof for use in small pieces as...
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6796302 |
Mixture fitting for a combustible gas burner system
A mixture fitting for use in a combustible gas system, for example, a fireplace. The mixture fitting may include a first portion configured to be coupled to a combustible gas source and a second...
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6792937 |
Miniature patio heater
A miniature patio heater is provided which has a total height of approximately 3 ft. and which has a shroud with a diameter less than 2 ft. The patio heater includes a base having a vertically...
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6786717 |
Combustion apparatus
A combustion apparatus ( 1 ) is generally composed of a principal part ( 5 ), a supplementary part ( 6 ) and a burner port assembly ( 3 ). Four metal plates ( 7,8,10,11 ) constituting the principal...
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6745759 |
Knock-down dome cover for a patio heater
The present invention provides a dome cover for a outdoor heater that is made up of a plurality of sides. Each side has at least three edges, a first edge is a finished edge, a second edge includes...
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6666205 |
Upright heating burner having a heatsink device background of the invention
An upright heating burner having a heatsink device includes an upright stand, an upright tube, a burner, an air guide cylinder, and a heatsink device. The heatsink device is mounted on a top of the...
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6659765 |
Infrared rays gas burner
An infrared rays gas burner comprises a main member having a box which has a base seat and a cover, two non-asbestos pads, ceramic planks and guiding device. The non-asbestos pads is mounted the...
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6651647 |
Heating apparatus with slidable shroud
A heating apparatus includes a burner assembly for igniting fuel from a fuel source, an upper housing for the burner assembly, and an elongate support member extending upwardly to the burner...
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6602068 |
Burner assembly for a gas-burning fireplace
A burner assembly that overcomes problems experienced in the prior art. One embodiment provides a burner assembly for burning a fuel gas from a gas source. The assembly has a burner body with a...
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6578570 |
Method of reducing CO and NOx emissions in a heating appliance and a respective appliance
A method of combustion of a gaseous fuel in a heating appliance ( 1; 22 ) provided with at least one burner ( 15; 29; 34, 35, 36; 38 ), comprising mixing said gaseous fuel with a preestablished...
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6516793 |
Low carbon monoxide gas log assembly
There is provided a low carbon monoxide gas log assembly having a main gas burner and a neat gas burner. The main gas burner includes a plurality of exit ports. A batting containing rock wool is...
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6488025 |
Portable campfire
The portable campfire includes a firebox with side walls, a bottom wall and an open top. A drip pan, with a floor that slopes downward and radially inward from a supporting ring to a discharge...
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6470876 |
Catalytic heater assembly
A portable heater assembly includes a fan module, an electrical ignition assembly, a heating apparatus, and an encasement. The encasement supports and houses the fan module, the electrical ignition...
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6431856 |
Catalytic combustion apparatus
In order to realize a catalytic combustion apparatus capable of effectively utilizing radiation from a surface of a catalytic element, providing a higher efficiency of heat exchange, and...
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6425390 |
Unvented heating appliance having system for reducing undesirable combustion products
A heating appliance including a firebox having an inlet and an outlet, the firebox inlet and outlet in communication with a space containing ambient air and within which the appliance is located. A...
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6269809 |
Low emission fireplace
This invention relates to heating apparatus and particularly compact heating apparatus fuelled by a flammable fluid such as gas in which a visible flame is provided. The appearance of the visible...
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6260548 |
Gas operated fireplace module
An improved gas operated fireplace module is provided having a ceramic support base with a plurality of irregularly-shaped and spaced protruberants on the upper surface of the base. Ceramic fuel...
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6129079 |
Gas fireplace with rotating log assembly
An artificial log is provided for use in a gas fireplace combustion chamber. A portion of the log outer surface has a charred appearance. When the fireplace is turned on and the log is heated, the...
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6062211 |
Method and apparatus for preventing impingement of yellow flames on a log in an unvented artificial gas log set
An artificial gas log set which simulates in a very realistic fashion a log fire in a fireplace. The artificial log set comprises a log, a burner tube having ports for creating a yellow flame that...
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6036474 |
Gas burner for fireplace
A gas burner for a fireplace. The burner comprises a burner housing having a grid of openings that are formed from heat resistant material. The housing has a first burner assembly and a second...
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6026805 |
Heating apparatus
A vent-free, gas fireplace for providing heat, light, and an aesthetic view includes an outer shell arranged with a top panel, front panel, rear panel, and left and right side panels and a...
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6019069 |
Gas-fired heaters with burners which operate without secondary air and have a substantially sealed combustion chamber
A gas-fired burner apparatus includes a porous combustion surface disposed in a combustion chamber substantially sealed to prevent entry of secondary air. A subatmospheric pressure is maintained in...
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6006742 |
Simulated solid fuel element
An improved fireplace assembly is described having a sheet metal burner and an associated set of simulated logs to create different sizes and shapes of flames, or flame patterns. The flame patterns...
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5984663 |
Gas fueled heating appliance
A gas heater is provided with a combustion status sensor that provides heater performance data to a controller that controls the heater according to the sensor data and stored calibration...
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5984662 |
Karman vortex generating burner assembly
A burner assembly for use in a gas burning fireplace for producing flame patterns simulating flame patterns produced by real burning wood, and a method for producing such flame patterns. A...
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5983890 |
Fireplace having multi-zone heating control
A fireplace adapted to heat multiple heating zones of a building, controlled by a control circuit which adjusts the heat input to the fireplace, airflow through the fireplace and ducting of the...
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5960789 |
Flammable fluid heating apparatus
This invention provides a flammable fluid fuelled heater providing a direct opening into the primary combustion chamber to provide an unobstructed view of the fire. Any circulating means such as a...
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5931154 |
Gas fireplace burner plate
A burner for a gas fireplace has a burner tube with a plurality of gas ports that provide flames for combustion when the burner is operating. A plate is positioned above the burner tube and has...
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5927270 |
Gas burner system for fireplaces
A gas burner for gas fireplaces has a housing defining a shallow chamber with an extended top and surface which covers most of the grate area of a gas fireplace and supports non-combustible logs...
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5918592 |
Gas-fired log burner
A gas-fired log burner for simulating natural burning of firewood wherein a gas burner component having a decorative burner face surface engages within a recess formed in an exterior surface of a...
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5906197 |
Gas fireplace
A vent free gas fireplace comprises a housing and a firebox within the housing spaced-apart from the housing walls to provide top, bottom, rear and side plenums. The side plenums are divided into...
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5890485 |
Dancing flame control system for gas fireplaces
A novel control system for altering a fixed pattern of gas flames in a fireplace having artificial logs comprises a log set having a burner system and the burner system having a gas valve control...
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5839427 |
Artificial ember bed
An artificial ember bed (5) for use within a fireplace (7) is disclosed. The fireplace will include a burner (12, 13) positioned below an elevated log grate (19), on which at least a pair of spaced...
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5743249 |
Gas fireplace system burner assembly
An improved burner assembly is disclosed for a gas fireplace system including a set of gas logs supported on a grate. The burner assembly includes a generally horizontal burner pan positionable...
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5722824 |
Unvented gas burner assembly
A gas burner assembly is provided which can be used in an unvented gas-fired fireplace and which closely approximates the look of a wood-fired fireplace. The gas burner assembly has a gas...
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5688568 |
Enhanced glowing logs and method
A novel fireplace element is made by a novel process wherein the fireplace element is first molded from a mixture of refractory and ceramic fibers and removed from the mold in a green state. While...
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5678534 |
Heating apparatus
This invention relates to heating apparatus and particularly compact heating apparatus fuelled by a flammable fluid such as gas in which a visible flame is provided. The appearance of the visible...
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5671727 |
Configurable low profile gas fireplace burner
A gas fireplace has a set of artificial logs. The logs rest on top of a burner. The burner is formed from top and bottom metal sheets. The sheets are sealed together around a channel matched...
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5634457 |
Gas heating apparatus
A gas heating apparatus comprises a duct constructed by a heat insulating material having a heat resisting property, a plurality of honeycombs disposed across in the duct so as to oppose to a...
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5601073 |
Flat pan gas burner for gas fireplaces
A flat pan gas burner for a gas log fireplace system comprises a U-shaped pan formed in a sheet of metal. The U-shaped pan is provided with attachment flanges and a gas pipe attachment aperture...
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5575636 |
Porous non-fouling nozzle
A nozzle and gas injection method using the nozzle wherein the nozzle comprises a section of porous material. Gas passes through one or more passageways running the length of the porous material...
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5571008 |
Gas burner for use with artificial logs
A gas burner for use with artificial logs in a gas log heater includes a thin metal top member having substantially flat upper and front burner surfaces, and a metal base member affixed to the top...
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5553603 |
Air to fuel ratio adjustment device for sealed-combustion type fireplaces
A sealed-combustion chamber fireplace includes a combustion air to fuel adjustment device comprising an primary air-fuel mixing body having a fuel source inlet at one end and at least one...
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5492055 |
Pizza oven
An oven for pizza and other baked goods includes auxiliary heating means positioned in the baking chamber. By designing the auxiliary heater to simulate a burning log viewable through the baking...
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5452708 |
Universal horizontal-vertical (H-V) direct-vented gas heating unit
A novel horizontal-vertical (H-V) direct vented gas heating unit comprises a box-shaped heating unit having seven walls which surround a combustion chamber. One of the seven walls comprises a...
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