What is the purpose of a cross-lighter or carry over on a gas burner?

The purpose of a cross-lighter or carry over on a gas burner is to provide smooth lighting of all burners. This component is specifically designed to ensure that the flame from one burner can ignite adjacent burners seamlessly. By facilitating this lighting process, it enhances the overall efficiency of the furnace operation and ensures that all burners light simultaneously or sequentially without delay or issues. This smooth ignition reduces the risk of unlit burners, which can lead to issues such as increased emissions or improper heating.

The other options, while they may relate to gas burners in a general sense, do not capture the primary function of a cross-lighter or carry over. For example, reducing gas consumption or increasing burner efficiency are goals that may be influenced by how burners are lit and their design, but they don’t directly describe the role of the cross-lighter. Similarly, improving furnace aesthetics is not a function of the cross-lighter; it is more about the operational mechanics of the burner lighting system.