Lennox Industries Inc.

Darcy Quentin Easterling

Glenn Will Kowald

Glenn William Kowald

Leonor Beakley

Nabil George Hamad

An air intake coupling has at least one noise suppression hole formed therein. A gas-air mixer elbow is fluidly coupled to the air intake coupling. A burner box assembly is fluidly coupled to the gas-air mixer elbow via a gas-air plenum box. A heat-exchange tube has a first end that is fluidly coupled to the burner box assembly. A fan is fluidly coupled to a second end of the heat-exchange tube via a cold-end header box.

Air intake coupling with noise suppression for low NOx emission furnace

A controller for a gas furnace, a computer-usable medium for implementing a method and a gas furnace are disclosed herein. In one embodiment, the controller includes: (1) an interface configured to receive a heating call and (2) a processor configured to enable an inducer of the gas furnace at a low speed based on the heating call and ignite the gas furnace at a high fire operation when determining a low fire pressure switch of the gas furnace is open.

Furnace, a method for operating a furnace and a furnace controller configured for the same

A burner box assembly for a combustion air furnace includes a back wall, opposed side walls and top and bottom walls defining an interior space for one or more burner nozzles. A combustion air inlet opening is formed in the top wall and is covered by a generally rectangular inverted channel-shaped airflow guide and baffle member. A second generally rectangular box-shaped louvered airflow guide and baffle member is mounted on the interior side of the top wall over the combustion air inlet opening for distributing the flow of combustion air into the burner box assembly and to reduce acoustic emissions from the burner box assembly through the combustion air inlet opening. The combination of the louvered baffle member and the exterior mounted baffle member provides reduced acoustic emissions from the burner box assembly as well as more evenly distributed combustion airflow into and through the burner box assembly.

Growing community of inventors

Flower Mound, TX, United States of America

Darcy Quentin Easterling