Burner for a regenerative hot blast stove

In a regenerative hot blast stove, the combination of a refractory furnace wall with a burner port in the bottom thereof and a shell on the outside of said wall, support means on the lower end of said shell extending inwardly from said shell, a burner structure having an upper section with a plurality of burner openings therein, and a lower section having means dividing the lower section into an upper and lower gas header and a plurality of unit burners extending from the burner openings into the lower section, each burner unit having a central flow path extending into the lower gas header and an outer flow path extending into the upper header, upper section mounting means on said upper section for removably mounting said upper section on said support means with said upper section in said burner port with the periphery of said upper section spaced a uniform distance from the portion of the furnace wall defining said burner port, and lower section mounting means removably mounting said lower section on said support means, and an adjusting mechanism at the end of the central flow path of at least some of the unit burners in the lower section for independently adjusting the flow rate through the burner unit from the lower section.