Matches 1 - 48 out of 48
Match Document Document Title
7066170 Apparatuses and methods for balancing combustion air and exhaust gas for use with a direct-vent heater appliance  
A combustion air and exhaust gas balancing system for use with a direct-vent heater appliance. The balancing system includes a combustion air valve in fluid communication with a combustion air duct...
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...
6286502 Fireplace assembly  
A fireplace assembly comprises a smoke chamber and a firebox in fluid communication with the smoke chamber. A masonry casing partially surrounds the firebox, the casing having a pair of...
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...
6047695 Fireplace heat exchanger  
For use with a fireplace, a heat exchanger mounted across the top portion of the fireplace with the heat exchanger comprising a heat exchanger core with four identical extruded core sections...
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...
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...
5819725 Aerodynamic device for increasing the flickering of a natural gas flame  
A process and apparatus for combustion of a gaseous fuel in a fireplace in which a plurality of periodic vortices are created in the airflow pattern of the combustion air prior to its mixing with...
5685290 Combustion air kit  
A combustion air kit for providing a source of external air to feed a fire in a firebox is installed during new construction or as a retrofit unit into existing fireplaces. A masonry air vent brick...
5647342 Gas operated fireplace assembly  
A gas operated fireplace assembly is comprised of a plurality of modular components, including a casing, firebox, burner module and combustion air-intake module. The casing has an open front and is...
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...
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 installed...
5553604 Space heating system, heater, and combustion chamber  
The space heating system has a stove (1, 2) with a sealed combustion chamber (3); air is heated in the stove in a heat exchanger (12) therein, and heated air is conducted through hollow blocks (80)...
5542407 Fireplace assembly  
A fireplace assembly of the type used as a room air heater comprises a second pane of glass in front of and spaced from the glass pane forming the front of the combustion chamber. The two panes...
5479916 Low profile gas burner fireplace table  
A low profile gas burner fireplace is provided for mounting under a low table top or counter. The fireplace system comprises a decorative insulated table top mounted on the top wall of a low...
5320086 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 side...
5313932 Hood for fireplace  
A fireplace has a manifold positioned between a combustion chamber and a flue. The manifold has a pair of inlets to supply dilution air to the flue, one extending from a front face of the...
5309891 Direct evacuation gas heater or fireplace and safety release valve for said heaters  
A direct ventilation gas fireplace having co-linear air intake pipe and gas outlet pipe. The pipes are separated from each other so that the fluid flowing in one pipe does not come in contact with...
5307801 Zero clearance fireplace  
A fireplace comprises a firebox which has a flue and front, bottom, top, rear and side panels. An outer casing is spaced from and surrounds the firebox. A combustion air plenum is positioned at a...
5284127 Device for regulating the strength of the flue draught in heating appliances  
An air guide element is installed between air supply vent and the inside of he door of the heating appliance which consists of an adjustable damper for regulating the supply of secondary combustion...
5267552 Direct vent gas fireplace  
A direct vent gas fireplace has a firebox surrounded by an enclosure. The enclosure has an inclined surface between the top, rear and sides. The surface is inclined at approximately 45 degrees and...
5191877 Insertable gas conversion unit  
An insertable gas conversion unit for insertion into existing wood burning fireplaces comprises an insertable gas fireplace conversion unit having a fire box combustion chamber and a gas burner...
5076254 Direct vented multi glass side fireplace  
A zero clearance fireplace of the type adapted to be installed against an outside wall of an interior space or room to be heated is provided with six walls which comprise four substantially...
5074284 Fireplaces of the type with closed hearth and with visible combustion  
It comprises a hollow base (1) which is connected on the one hand to an evacuation conduit (9), on the other hand to smoke collector tubes (8) which open out upwardly at the apex of a liftable...
5072719 Air supply system for a firebox  
The air supply system for feeding air to a firebox within a building comprises a fresh air intake box (3) in the outside building wall (19) and, in the immediate vicinity of the firebox, a...
5052311 Zero-clearance firebox  
A zero-clearance firebox with a much simplified construction enables efficient air exchange directly through one opening in which solid combustible materials are placed. The firebox has a metal...
5014683 High efficiency fireplace and method of operation  
A fireplace combustion system in which a sealed firebox contains: a base having apertures connected to a source of combustion air and wherein a hollow grate is connected to one of the apertures to...
4964396 Fireplace restoration unit  
The unit restores existing, masonry fireplaces without entailing dismantling of the latter. A heating jacket base, heating jacket, smoke chamber and flue lining are set into the existing firebox,...
4883044 Fireplace assembly  
The assembly is adapted for installation as a free standing unit, a fireplace insert or a whole masonry fireplace. It comprises a primary combustion chamber, similar to a traditional fireplace,...
4825849 Fireplace air supply  
An outside air supply control apparatus for a fireplace comprising a first cylindrical pipe for connection to an outside air supply, the pipe containing at least one aperture in its wall. A second...
4819613 Inlet vents for fireplaces  
A fresh air vent for building into the hearth of a fireplace is constructed with the shape and heft of a hearth brick. It has a body and lid of heavy-gauge steel, the body replacing a hearth brick...
4466340 Chimney assembly  
A prefabricated chimney assembly of the dual-wall type, adapted to be coupled to the flue outlet of a fireplace, is disclosed. The chimney assembly includes an inner conduit extending the length of...
4357930 Heating system for fireplaces  
A system for heating the air in the room containing a fireplace includes a heat exchanger mounted at the top portion of the combustion chamber of the fireplace to extend across the chimney flue...
4332235 Rotating air draft fireplace  
An enclosed fireplace of circular cross-section mounted on a pedestal in which air is drawn into the fire chamber from spaced vertical air intake tubes mounted about the periphery of the fire...
4304215 Fireplace heating unit  
A fireplace heating unit having a stainless steel firebox mounted within a double-walled housing, the firebox and housing being constructed and arranged to provide an inner air chamber...
4259941 Fireplace construction for mobile homes  
A prefabricated fireplace construction for mobile homes comprises a firebox having an entranceway to a room, and an upstanding flue connected with the firebox for exhausting combustion gas to the...
4233956 Fireplace system  
A fireplace system comprising a hollow base pan and a shroud supported on the base pan and defining a combustion air chamber of inverted U-shaped configuration having open lower ends communicating...
4195618 Fireplace venting system  
A fireplace venting system wherein the opening to the combustion chamber is provided with a manifold extending across the top and at opposite sides of the opening. The manifold is provided with a...
4182305 Apollo model fireplace  
A metal fireplace unit suitable for use in mobile homes or the like is formed in the configuration of an eight-sided space capsule. Heat resistant windows are placed on three of the eight sides so...
4153036 Fireplace construction  
A prebuilt fireplace construction for installation in a building structure, such as a mobile home. The construction includes a firebox having an open side and a combustion gas outlet adapted to be...
4074679 Fireplace stove  
A fireplace stove for heating space in a building structure which includes an outer cabinet in which is disposed a combustion enclosure in spaced-apart relationship with the cabinet sidewall and...
4068649 Free standing fireplace stove  
A free standing fireplace stove is provided wherein the combustion air passes under the bottom of the combustion chamber to keep the bottom of the fireplace unit cool. The fireplace is so well...
4061127 Mobile home fireplace with external air supply  
A fireplace for use in mobile homes is disclosed. The fireplace has a plurality of doors which seal the combustion chamber. An air duct leads from the combustion chamber of the fireplace through...
4006733 Free standing fireplace for mobile homes  
A free standing fireplace for a mobile home vents incoming air into the fireplace through a vertical vent extending through the floor of the mobile home into a conical base and vents the combustion...
3910251 Fireplace  
A freestanding fireplace having unique insulation structure, draft deflector, pedestal, and cantilevered hearth.
3724443 COUNTER-FLOW FIREPLACE  
A prefabricated fireplace assembly is constructed as a double-walled structure defining an open-front hearth and a dome portion terminating at its upper end in a smoke pipe adapted to cooperate...
3601117 COUNTERFLOW FIREPLACE  
The double-walled fireplace is described which is adapted to be connected to a counterflow chimney arrangement designed to introduce cold air into the fireplace through an outer duct while the...
3538909 PRE FAB FIREPLACE LINER  
Matches 1 - 48 out of 48