What is the most common burner used in induced draft furnaces?

The most common burner used in induced draft furnaces is the in-shot burner. This type of burner utilizes a unique design that allows for efficient combustion within the furnace. The in-shot burner combines air and gas in a mixing chamber before introducing it into the combustion area, facilitating a more complete and cleaner burn.

This design contributes to improved efficiency and fuel utilization, while also reducing emissions. Induced draft systems, which use a fan to draw gases through the heat exchanger and vent them outdoors, work particularly well with in-shot burners because they help maintain the proper airflow and combustion characteristics needed for this configuration.

The advantages of using in-shot burners include compact size and ease of installation in various furnace designs. These features make them a popular choice for residential and commercial applications, further solidifying their position as the most common burner type for induced draft furnaces.