초록 ▼

An improved fireplace assembly is described having a folded sheet metal burner manifold divided into three regions, being an upper burner, a lower burner and an intermediate communicating riser. This single manifold chamber is provided with two separate gas inlets, each of which may deliver a differ

An improved fireplace assembly is described having a folded sheet metal burner manifold divided into three regions, being an upper burner, a lower burner and an intermediate communicating riser. This single manifold chamber is provided with two separate gas inlets, each of which may deliver a different primary air to fuel mix suitable for use with an array of burner ports and an associated set of simulated logs to create different sizes and shapes of flames, or flame patterns. The flame patterns generate hot exhaust gases which heat portions of the simulated logs to glow. The burner ports used in the assembly to generate suitably attractive flame displays may include large or non-circular apertures or slots having local reinforcement to resist deformation of those apertures.

대표청구항 ▼

[ We claim:] [4.] A gas burner comprising:a body having an internal plenum;said body having an inlet for receiving gases from a source of combustion gases, said inlet being in fluid communication with said plenum;said body having a metal sheet and having an outlet defined in said sheet whence the co

[ We claim:] [4.] A gas burner comprising:a body having an internal plenum;said body having an inlet for receiving gases from a source of combustion gases, said inlet being in fluid communication with said plenum;said body having a metal sheet and having an outlet defined in said sheet whence the combustion gases can exit said plenum to be burned in a flame thereabove, said outlet having a characteristic length and a characteristic width, said length being greater than said width;said outlet having an at least partially reinforced periphery; andsaid periphery is reinforced by at least one rib adjacent to said outlet.