NG LPG 9-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 gasoline and pure gasoline Fuel type: fuel Do no longer position orders when natural gas cannot be used! ! ! Pay attention! ! ! Before putting an order, please be sure to carefully investigate the fire radiator (size/interface/use of air source). There isn't any universal fire radiator and may entirely be used to exchange the previous fire radiator to barely diverse size instruments and measurement methods, the results can have slight errors, that are for reference only.