Matches 1 - 50 out of 274 1 2 3 4 5 6 >


Match Document Document Title
8327836 Bicentric direct vent terminal  
A combined air intake and combustion gas vent terminal is provided for engagement with at least one of a pair of pipes extending horizontally and being spaced apart to accommodate the inward flow...
8156931 Direct vent cap  
A vent cap for a direct vent system. The cap may include a base plate and a semicircular outer housing secured to the base plate. A divider is coupled within the outer housing, with the divider...
7992322 Dryer having intake duct with heater integrated therein  
Disclosed herein is a dryer having a heater-integrated intake duct capable of reducing thermal loss and preventing overheating of the dryer. The dryer includes a support panel having a...
7980850 Self-recuperated, low NOx flat radiant panel heater  
A method and apparatus for producing radiant heat in which a mixture of fuel and primary combustion oxidant is introduced into a combustion chamber having a heat radiating wall, which mixture has...
7258116 Bottom venting fireplace system  
A fireplace having a bottom venting arrangement is disclosed. The fireplace includes a firebox having a burner and a combustion chamber. Fumes produced by burning of gas at the burner are pulled...
7069925 Pressure relief system for a gas fireplace  
A pressure relief system for a gas fireplace. The pressure relief system has a flue pipe with an opening in its side. A pressure relief plate is coupled to the flue pipe so that it is movable...
6910478 Direct-vent fireplace configurable for top venting or rear venting  
A direct-vent, gas fireplace assembly that is configurable into a top venting arrangement and alternately configurable into a rear venting arrangement includes a combustion chamber, an outer...
6863064 Framed fireplace and method  
A prefabricated fireplace assembly and method of manufacturing same are disclosed. The assembly is configured for direct mounting to the framework of a rough opening of a building in which it is...
6852023 Liner adaptor for chimneys  
A chimney liner adaptor is provided to allow air to flow between the outside environment and an annular space in a lined chimney flue. The adaptor may allow an air cooling system to operate but...
6776704 Exterior inlet/exhaust port  
An integrated exterior inlet/exhaust port for providing two air channels through a wall while only requiring a single hole through the wall.
6766796 Heat exchanger for forced air circulation ovens, particularly for baking food  
A heat exchanger for forced air circulation ovens, particularly for baking foods, of the type that comprise two chambers, a baking chamber and a heat exchange chamber, between which at least one...
6647977 Termination unit for a coaxial flue pipe  
A termination unit for a through-the-wall horizontal vent of a gas combustion device having a combustion chamber and a burner, is described. The termination unit comprises a wall mounting plate...
6543437 Drafthood adapter assembly particularly for stoves and fireplaces  
A drafthood assembly for inclusion within a vent stack for a direct venting stove or fireplace, converting the direct venting stove or fireplace for use with a natural venting flue. The assembly...
6488024 Wood heater  
A combustion system for burning firewood including a combustion chamber defined by front, rear and side walls, a ceiling and a bottom. An access door is provided for addition of fuel into the...
6484712 Vent cover assembly  
The present invention is directed toward a vent assembly having a vent structure defining at least one vent aperture. The vent assembly includes a vent cap covering the vent aperture or apertures...
6463926 Direct vent fireplace with baffled, directional exhaust and vent air column  
A direct vent gas fireplace has an angled flue pipe that can be directed horizontally out of the back of the fireplace or vertically out of the top of the fireplace, a baffle that conceals an...
6295981 Fireplace with vertical or horizontal venting  
A fireplace adapted for attachment to a flue pipe assembly including an exhaust pipe and a surrounding fresh air pipe is provided. The fireplace comprises an interior housing. The interior housing...
6289886 Side terminal for direct vent and method of operating same  
A side terminal for a direct vent operably connected to the outside wall of a structure within which a fireplace is located. The side terminal is configured such that the exhaust duct carrying...
6216684 Wood heater  
A combustion system for burning firewood including a combustion chamber defined by front, rear and side walls, a ceiling and a bottom. An access door is provided for addition of fuel into the...
6216685 Common venting of water heater and induced draft furnace  
A common, side-wall, Category III or Category IV-vented gaseous fuel-fired furnace and gaseous fuel-fired water heater system having a gaseous fuel-fired furnace having a furnace combustion...
6213117 Motorized insulated damper assembly for furnace systems  
A damper unit is provided that is adapted to be positioned in a furnace duct line. The damper unit has a housing which is in communication with a fresh air source and a furnace system. The housing...
6209535 Heating apparatus  
A heating apparatus comprises a combustion chamber, formed of an assembly having a rear wall, two lateral walls, an upper wall and a lower wall. The combustion chamber has at least one outlet for...
6125839 Combustion air intake apparatus for fuel-fired, direct vent heating appliance  
An outside air intake hood for receiving combustion air for delivery to a direct vent, fuel-fired heating appliance such as a water heater has an opposing pair of side inlets positionable to face...
6102030 Furnace vent and intake terminal and blockage safety shut down system  
A horizontal combined air intake and combustion gas vent terminal assembly is provided having improved wind pressure response and anti-recirculation characteristics. The terminal has a vent...
6053162 Balanced flue sealed vent terminal assembly  
The present invention is directed to a sealed vent terminal assembly intended for use in association with high-efficiency oil fired furnaces or boilers. The terminal assembly of the present...
6050259 Gas fireplace  
A direct vent gas fireplace has a combustion air supply duct extending down the back wall, on the outside of the housing back wall. It is connected to the firebox by a duct assembly with a flange...
6044835 Furnace vent and intake terminal and blockage safety shut down system  
A horizontal combined air intake and combustion gas vent terminal assembly is provided having improved wind pressure response and anti-recirculation characteristics. The terminal has a vent...
6039041 Methods of fabricating a vent/intake system for a fuel-fired, direct vent heating appliance  
A sheet metal colinear-to-coaxial duct transition assembly for a fuel-fired, direct vent heating appliance is fabricated by providing a one-piece rectangular sheet metal plenum box having a rear...
6029655 Modular gas fireplace insert  
A gas fireplace insert for inserting into existing solid fuel fireplaces is made into modules that are separable for installation and can be later assembled together. A housing module which...
6026800 Portable heater and cooker system  
A portable heater and cooker system is provided to apply radiant and conductive heat from a heating component to an enclosure area or a cooking utensil, using a heat generated chimney effect and...
RE36539 Seal and installation improvements  
A direct vent gas baseboard heater has field installable concentric air intake tube and exhaust pipe. The intake pipe and exhaust tube can be cut separately from the remainder of the heater,...
6019099 Heat removal system for fireplaces  
A high efficiency gas fireplace unit having a heat exchanger is located in a room in which the heat from the gas fireplace is not wanted. An air duct is connected to the heat exchanger and has a...
6003507 Gas heater having firebox with controllable outside air mixing vent  
A fireplace has a firebox with a controllable outside air vent to provide a source of cooler air for mixing with and modulating the temperature of the air heated by the fireplace. The air vent is...
5997295 Inlet/exhaust structure for an outdoor furnace  
An all weather inlet/exhaust structure (32) for an outdoor furnace (10,12,14) includes a generally rectangular upper compartment (40) having an imperforate upper wall (42) and horizontally...
5947110 Flue gas flow control  
The pressure pulsations caused by the flow patterns of flue gases entering a flue gas stack from a horizontal duct are eliminated or reduced by the installation of a partition plate in the stack...
5947113 Direct vent gas appliance with vertical and horizontal venting  
The invention relates to a direct vent gas fireplace adapted for attachment to a concentric flue pipe assembly having an exhaust pipe and fresh air pipe. A top wall, rear wall, bottom wall and...
5947112 Prefabricated fireplace exhaust plenum structure  
A novel wood/gas burning fireplace is provided with an open box shaped outer housing. A combustion chamber is mounted inside said housing having a plurality panels that are juxtaposed the panels...
5941231 Vertical or horizontal vent assembly  
A gas combustion apparatus including a housing having a top wall and a side wall, the top wall and the side wall defining vertical and horizontal openings, respectively, and the housing defining a...
5865165 Gas fired fireplace boiler  
A low profile, high efficiency, fireplace boiler wherein a burner tray supports a number of gas fired burners and artificial logs within a hearth area of the firebox and about which logs the gas...
5848586 Fire safety collar for gas water heaters  
An air inlet system for gas water heaters that prevents or delays the ignition of fumes from flammable liquids accidentally spilled on the floor. The air inlet is above the quickly combustible...
5762062 Fireplace vent  
A fireplace vent of the direct-vent type comprises two telescoping sections each having outer air intake housings and inner exhaust housings. One section has an adapter configured to communicate...
5742108 Vehicle generator having duct cover  
A vehicle generator has a duct cover for coding the generator body with a structure in which either one of the duct cover or a duct can be adjustably rotated in a circumferential direction of a...
5715808 Direct vent fireplace  
A direct vent fireplace has a mounting assembly for aiding in the installation of a vent cap assembly through which fresh air is drawn for combustion and exhaust gas products are expelled from the...
5680856 Discharge structure for closed gas appliances  
Modular discharge structure for closed gas appliances having an inner end and an outer end, comprising: an outer tubular casing; an inner gas exhaust pipe, being placed inside the casing to define...
5669555 Motor vehicle heating device with exhaust connection piece and baffle plate  
A motor vehicle heating device with an exhaust connection piece (3) and a baffle plate (9) located near its exit opening. The baffle plate (9) is attached to the exhaust connection piece (3) by...
5647340 Convertible dual direct-vented fireplace  
A novel dual direct vented fireplace includes a combustion chamber having two permanent exhaust outlets including a horizontal exhaust outlet and a vertical exhaust outlet. A fireplace enclosure...
5603312 Direct vent wood burning fireplace  
The invention is directed to a balanced flue or direct vented, solid fuel burning fireplace which may be installed in a building and is operable at energy input levels greater than 75,000...
5590641 Adaptor for installing flue liners to direct vent fireplace inserts  
A method and adaptor assembly are provided for installing a direct vent firebox, such as a gas fireplace insert, into an existing fireplace. An exhaust flue liner and inlet flue liner are...
5575273 Balanced flue outdoor water heater  
An outside balanced flue water heater including a water tank; a jacket surrounding the water tank; a combustion chamber containing a burner positioned adjacent the water tank; a flue extending...
5562088 Termination device for horizontal direct vent gas fireplaces or the like  
A termination device for a through the wall connection to the double walled coaxial ducting of a horizontal direct vented gas fireplace or the like comprising a mounting means having an opening...

Matches 1 - 50 out of 274 1 2 3 4 5 6 >