>. ¢ BLUE STAR 30” SEALED BURNER RANGE RT he BluoStar® has combined professional level features and a sleek design into its new Sealed Burner Series. Cook like a pro with professional level power and versatility with up BTU of searing power plus a precise simmer bummer. The Sealed Burner Series features an extra-large convection oven that will accommodate a commercial size baking sheet.