The Delavan Oil Burner Nozzle .60-80°A is a high-quality product designed for use in boilers, water heaters, and furnaces. This nozzle, with a hollow flame pattern, is compatible with oil, kerosene, diesel, and biofuel as power sources. With a model specifically designed for HVAC systems, this lot of 5 nozzles from Delavan will ensure efficient and consistent heating in your home or building. Perfect for those in need of reliable and durable heating solutions.