NG LPG 13-Row Burner Energy-Saving Steam Oven Boiler Flange interface Stainless Steel Row Burner With CoverFire row burner Color classification:Flange interface , and used for liquefied gas and natural fuel Fuel type: fuel Do no longer function orders when pure gas can't be used! ! ! Pay attention! ! ! Before placing an order, please make sure you closely confirm the fireplace radiator (size/interface/use of air source). There is no usual fire radiator and may solely be used to interchange the outdated fire radiator to barely assorted dimension instruments and measurement methods, the results can have slight errors, which are for reference only.