Patent ID: 7946257
Filing Date: 2011-05-24
Classification: F23C,F23L,F24H

Abstract:
1. A fuel-fired heating appliance having a combustion chamber assembly comprising: a hollow body having an interior circumscribed by a side wall; a plate member extending generally transversely to said side wall and dividing said interior into a combustion chamber and an air intake plenum; a combustion air intake opening extending through said side wall into said air intake plenum; a fuel burner centrally disposed in said combustion chamber in a spaced relationship with said plate member and in a facing relationship with a central portion thereof; an air transfer opening extending through said central portion of said plate member; and a wall structure disposed in said air intake plenum and extending inwardly from said combustion air intake opening, said wall structure forming a passage for receiving air drawn inwardly through said combustion air intake opening and flowing a portion of the received air to said air transfer opening for transfer therethrough into said combustion chamber, said passage having a volume substantially less than that of said air intake plenum,