Which type of burner requires secondary air to operate effectively?

An atmospheric burner is designed to operate using the ambient air around it for combustion, which means it relies on the natural air pressure to bring in the necessary oxygen for the combustion process. This type of burner requires secondary air to effectively maintain and support combustion, as secondary air helps in mixing with the gas or fuel that is being burned, enhancing the efficiency of the combustion process.

In atmospheric burners, the design simplicity often leads to a reliance on the natural flow of air. Secondary air enters the system to facilitate proper mixing and create a more complete combustion reaction, which is critical for achieving efficient burning and reducing emissions. Properly functioning atmospheric burners will use this secondary air to optimize fuel-to-air ratios, improving performance and safety.

The other types of burners mentioned do not primarily depend on secondary air in the same way. For example, forced air burners and power burners typically include fans or mechanical systems that actively manipulate air flow, allowing them to operate effectively without relying as heavily on ambient conditions. Venturi burners utilize a different mixing principle, relying primarily on the vacuum created by gas flow to draw in air, but they don't require secondary air as atmospheric burners do.