Including high-energy direct spark ignitor, ECOjet is applicable to boilers ranging from single to multiburner wall-fired, Turbo, and other boiler types. Burner offers up to 400 mm Btu/hr capacities, NOx levels of less than 30 ppm without FGR, and ultra-low NOx of less than 10 ppm with less FGR. Staged gas design provides stable flames, up to 20:1 burner turndown, hot standby, available continuous pilot, and precise furnace warm-up.