A fan assist burner is designed for what purpose?

A fan assist burner is designed primarily to improve the efficiency of combustion within a heating appliance. Specifically, its purpose is to overcome burner resistance, which can occur due to various factors such as air flow restriction or insufficient air supply. By utilizing a fan, the burner can ensure an adequate amount of air mixes with the fuel, leading to improved combustion efficiency and overall performance.

In scenarios where a burner may struggle to draw in enough air naturally, the fan assists in providing the necessary airflow, helping to maintain optimal operation. This aspect is crucial because effective combustion not only enhances the efficiency and output of the heating system but also contributes to safer operation by reducing the potential for incomplete combustion, which can lead to hazardous byproducts.

While better combustion can indeed be a result of better airflow, the primary function of the fan assist mechanism focuses specifically on addressing and overcoming resistance within the burner system itself.