The burner is the true driver of fuel use and costs in a boiler. Over time, a burner’s moving parts wear out, and the burner loses its ability to keep tight control of the fuel-to-air ratio.

In recent years, burner technology advancements have led to the development of higher efficiency, lower emissions products. Burner engineers have made great strides in increasing burner turndown and lowering excess air levels even at the lower firing rates. At the same time, they have engineered ways to reduce NO_X to single-digit levels.