This Lochinvar main burner, known as the LO NOX, is a key component in heating systems. It is designed to reduce the emission of nitrogen oxides (NOx), a group of gases that contribute to air pollution and global warming. The LO NOX main burner achieves this through a process called staged combustion, which minimizes the formation of these harmful gases. It is made from durable materials to ensure longevity and reliability. This product is compatible with various Lochinvar heating systems, making it versatile for different applications.