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Abstract

A high efficiency linear gas burner assembly having a mixture manifold assembly for delivering a combustible gas and air mixture to a burner. The mixture manifold assembly supports an elongate, channel-shaped, secondary air plenum which receives therein a burner housing. The burner housing supports two, spaced, parallel plates, each having apertures therethrough. The gas/air mixture is delivered through the mixture manifold assembly and secondary air plenum to the burner housing where the mixture passes first through the apertures of the lower plate, then between the plates, then through the apertures of the upper plate or burner surface. The size and number of apertures in the upper plate and the space between the plates ensures that the flame remains stable during a wide range of turndown, and that the flame does not retrogress through the burner apertures. Secondary air ports are provided along the interior of the secondary air plenum to provide additional air for combustion.

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First Claim