A linear fireplace system, assemblies, modular units, and related methods that can be installed in a modular fashion at a selected installation location so as to avoid drawbacks experienced in the prior art. The system can include modular linear units, corner units, and/or end units interconnectable to form a modular linear fireplace assembly. The system can include an alignment track system with a track member that receives alignment rails on the bottom of the modular units to axially align the interconnected units. The system can include a combustion air flow passage within the fireplace that maintains a relatively low exterior temperature of the assembly and that allows combustible and non-combustible building materials to be installed against or immediately adjacent to the top and base portions of the modular units of the assembly.

A method of operating a heating device includes heating air in a heating device chamber. The method further includes exhausting outgoing air from the heating device chamber via a first flow path through which the outgoing air flows in a first direction, and supplying incoming air to the heating device chamber via a second flow path through which the incoming air flows in a second direction opposite to the first direction. The latent heat in the outgoing air in the first flow path is transferred to the incoming air in the second flow path thereby condensing water vapor contained in the outgoing air to produce liquid water.

A grill cage includes a body having four sides and a bottom provided with a plurality of through-holes formed on a surface of the bottom and a plurality of discharge holes framed in one or both edges of the bottom; a cover hingedly engaged to the body, and having four sides corresponding to the four sides of the body, and a bottom provided with a plurality of through-holes formed on a surface of the bottom of the cover, and a plurality of discharge holes formed in one or both edge parts of the bottom surface of the cover; and inner plates each of which is mounted on the body and the cover, and has four sides having a height lower than the sides of the body and the cover, and a plurality of through-holes formed on a bottom surface of the plate.

A grill configured to cook food placed above it. The grill comprising a base having an interior and containing a support for the food being cooked and gas jets for burning gas and generating heat to cook the food. The gas jets are directed downwards towards the interior of the base, thereby heating a bed of heat absorbent inert material. This material is heated by the gas jets and then radiates heat upwardly in the direction towards the support.

An oven appliance includes a cabinet defining a cooking chamber. The oven appliance further includes a gas burner assembly, the gas burner assembly including a burner tube disposed within the cooking chamber adjacent a top wall. The burner tube defines a passage extending from an inlet and further defines a plurality of outlet ports. The oven appliance further includes a conduit defined within the cabinet, the conduit defining a passage disposed exterior to the cooking chamber, the passage extending from an inlet. The conduit further defines a plurality of outlet apertures. The oven appliance further includes a duct defining a passage extending between an inlet and an outlet. The outlet is in fluid communication with the inlet of the burner tube for flowing primary air through the burner tube and in fluid communication with the inlet of the conduit for flowing secondary air through the conduit.

The invention relates to a burner for gas-fired cooking appliances, with a structure comprised of: a body (10) defining a chamber (12) within which an injector (14) inputs the gas which, upon mixing with air, forms the gas-air combustible mixture; a ring (16) positioned over the body and provided with a periphery along which are arranged the combustible mixture outlet ports (18), and a circular plate (20) that closes the top of the burner. At least the burner ring (16) is made of a metal or a metal alloy and is coated with a thin layer of material having catalytic activity, which may be coated on a catalyst precursor porous support substrate.

A portable propane fuel heater assembly for heating a room with propane fuel includes a fuel tank that contains liquid propane. A supply hose is fluidly coupled to the fuel tank for receiving gaseous propane from the liquid propane. A heater is provided and the heater is positionable in a room in a building. The supply hose is fluidly coupled to the heater thereby facilitating the heater to receive the gaseous propane that gaseous propane from the liquid propane. In this way the heater can burn the gaseous propane for heating the room in the building. Additionally, the heater has an exhaust duct for venting combustion gases outwardly from the heater.

A chimney assembly includes a cone assembly and a chimney. The cone assembly includes a wall forming a truncated cone having an outer surface, a first circumferential edge, and a second circumferential edge, a support flange extending from the outer surface, and a bottom wall extending between the second circumferential edge and including a burner aperture wall formed therethrough. The chimney includes an inner wall, an outer wall circumscribing the inner wall, a bottom chimney wall, and a plurality of tabs. The bottom chimney wall extends between a first cylinder formed by the inner wall and a second cylinder formed by the outer wall. The plurality of tabs extend from the inner wall toward a center of the first cylinder. The support flange rests on the plurality of tabs.

An air baffle unit includes a major housing wall extending in first and second directions to define an exterior side and an interior side, two upper corner output vent openings, first and second laterally opposed side vent openings, and an air intake opening arrangement defined within an intake area along the major housing wall and extending therealong in the first and second directions. The air intake opening arrangement is defined in an intake area and includes first and second pluralities of intake vents positioned within respective first and second open areas of the intake area with first and second closed areas extending between the first and second open areas. The first and second open areas and first and second closed areas each positioned within respective quarters of the intake area. The open areas are displaced relative to each other in both the first direction and the second direction.

An over or grill burner includes a hollow body with a supplying port receiving a gaseous fuel mixture and outlet holes emitting the gaseous fuel mixture, and a conveying duct conveying the gaseous fuel mixture toward the hollow body, which has a delivering port and a supplying/mixing port with a first aperture for a fuel gas and a second aperture for a gaseous combusting product, and a reflector conveying a flame produced by combustion of the fuel mixture from the outlet holes. The supplying port of the hollow body and the delivering port of the conveying duct have a substantially circular cross-section and are connected to each other in a freely rotatable manner.