What is one advantage of using a refractory (gas) burner?

One significant advantage of using a refractory (gas) burner is that the air and gas mixture is thoroughly preheated before it enters the furnace. This preheating process enhances combustion efficiency because the mixture enters the combustion zone at a higher temperature. As a result, the fuel burns more completely and efficiently, leading to an increase in heat output and reducing fuel consumption. Preheating also helps to lower emissions, as more complete combustion often results in less unburned fuel and fewer pollutants being released into the atmosphere.

This characteristic is particularly advantageous in industrial applications where optimizing energy use and maintaining a consistent temperature is crucial for operational efficiency. By ensuring that the air and gas mixture is at an optimal temperature prior to combustion, refractory burners contribute to improved overall performance of the heating system.